diff --git a/grobid-core/src/main/java/org/grobid/core/utilities/TextUtilities.java b/grobid-core/src/main/java/org/grobid/core/utilities/TextUtilities.java
index 4ab3117782..fd08517438 100755
--- a/grobid-core/src/main/java/org/grobid/core/utilities/TextUtilities.java
+++ b/grobid-core/src/main/java/org/grobid/core/utilities/TextUtilities.java
@@ -58,8 +58,12 @@ public class TextUtilities {
 
     // a regular expression for arXiv identifiers
     // see https://arxiv.org/help/arxiv_identifier and https://arxiv.org/help/arxiv_identifier_for_services
+    // three pattern types are allowed, here are examples of each
+    //   "new style" with prefix: 'arXiv:0706.0002v3', 'arxiv: 0706.0002'
+    //   "old style" with prefix: 'arXiv : hep-th/9901001v2', 'arxiv:hep-th/ 9901001'
+    //   "old style" without prefix (strict): 'hep-th/9901001v2', 'math/9901001'
     static public final Pattern arXivPattern = Pattern
-        .compile("(arXiv\\s?(\\.org)?\\s?\\:\\s?\\d{4}\\s?\\.\\s?\\d{4,5}(v\\d+)?)|(arXiv\\s?(\\.org)?\\s?\\:\\s?[ a-zA-Z\\-\\.]*\\s?/\\s?\\d{7}(v\\d+)?)");
+        .compile("(ar[xX]iv\\s?(\\.org)?\\s?\\:\\s??\\d{4}\\s?\\.\\s?\\d{4,5}(v\\d+)?)|(ar[xX]iv\\s?(\\.org)?\\s?\\:\\s?[ a-zA-Z\\-\\.]{3,16}\\s?/\\s?\\d{7}(v\\d+)?)|([^a-zA-Z](math|hep|astro|cond|gr|nucl|quat|stat|physics|cs|nlim|q\\-bio|q\\-fin)[a-zA-Z\\-\\.]*/\\d{7}(v\\d+)?)");
 
     // regular expression for PubMed identifiers, last group gives the PMID digits
     static public final Pattern pmidPattern = Pattern.compile("((PMID)|(Pub(\\s)?Med(\\s)?(ID)?))(\\s)?(\\:)?(\\s)*(\\d{1,8})");
diff --git a/grobid-core/src/test/java/org/grobid/core/lexicon/LexiconIntegrationTest.java b/grobid-core/src/test/java/org/grobid/core/lexicon/LexiconIntegrationTest.java
index 231cca1b60..1d5ac901bd 100755
--- a/grobid-core/src/test/java/org/grobid/core/lexicon/LexiconIntegrationTest.java
+++ b/grobid-core/src/test/java/org/grobid/core/lexicon/LexiconIntegrationTest.java
@@ -345,6 +345,18 @@ public void testInArXivPatternLayoutToken2() {
         assertThat(positions.get(0).end, is(15));
     }
 
+    @Test
+    public void testInArXivPatternLayoutToken3() {
+        String piece = "K.R. Dienes, C. Kolda and J. March-Russell, hep-ph/9610479.";
+        List<LayoutToken> tokens = GrobidAnalyzer.getInstance().tokenizeWithLayoutToken(piece);
+        String text = LayoutTokensUtil.toText(tokens);
+        List<OffsetPosition> positions = target.tokenPositionsArXivPattern(tokens, text);
+
+        assertThat(positions, hasSize(1));
+        assertThat(positions.get(0).start, is(22));
+        assertThat(positions.get(0).end, is(27));
+    }
+
     @Test
     public void testInIdentifierPatternLayoutToken() {
         String piece = "ATLAS collaboration, Measurements of the Nuclear Modification Factor for Jets in Pb+Pb Collisionsat √ "+
@@ -396,4 +408,4 @@ public void testInEmailPatternLayoutToken() {
         assertThat(positions.get(1).start, is(27));
         assertThat(positions.get(1).end, is(33));
     }
-}
\ No newline at end of file
+}
diff --git a/grobid-trainer/resources/dataset/citation/corpus/16-1708.00362.training.references.tei.xml b/grobid-trainer/resources/dataset/citation/corpus/16-1708.00362.training.references.tei.xml
index 068c158814..b18f660445 100644
--- a/grobid-trainer/resources/dataset/citation/corpus/16-1708.00362.training.references.tei.xml
+++ b/grobid-trainer/resources/dataset/citation/corpus/16-1708.00362.training.references.tei.xml
@@ -25,7 +25,7 @@
 	<bibl><author>P. Silvi, E. Rico, T. Calarco, S. Montangero</author>, <title level="a">Lattice gauge tensor networks</title>, <title level="j">New Journal of Physics</title> <biblScope unit="volume">16</biblScope> (<biblScope unit="issue">10</biblScope>) (<date>2014</date>)<biblScope unit="page">103015</biblScope> .URL <ptr type="web">http: //stacks.iop.org/1367-2630/16/i=10/a=103015</ptr></bibl>
 	<bibl><author>B. Buyens, K. Van Acoleyen, J. Haegeman, F. Verstraete</author>, <title level="a">Matrix product states for Hamiltonian lattice gauge theories</title>,ArXiv e -prints<idno type="arxiv">arXiv:1411.0020</idno>.</bibl>
 	<bibl><author>E. Rico, T. Pichler, M. Dalmonte, P. Zoller, S. Montangero</author>, <title level="a">Tensor networks for lattice gauge theories and atomic quantum simulat</title> <title level="j">Phys.Rev .Lett .</title><biblScope unit="volume">112</biblScope> ( <date>2014</date>)<biblScope unit="page">201601</biblScope> .<idno type="DOI">doi :10.1103/PhysRevLett.112.201601</idno>.URL <ptr type="web">https: //link.aps.org/doi/10.1103/PhysRevLett.112.201601</ptr></bibl>
-	<bibl><author>H. Saito, M. C. Bañuls, K. Cichy, J. I. Cirac, K. Jansen</author>, <title level="a">The temperature dependence of the chiral condensate inthe Schwinger model with Matrix Product States</title> ,<title level="j">PoS</title> <biblScope unit="volume">LATTICE2014</biblScope> ( <date>2014</date>)<biblScope unit="page">302</biblScope> .<idno type="arXiv">arXiv :1412.0596</idno>.</bibl>
+	<bibl><author>H. Saito, M. C. Bañuls, K. Cichy, J. I. Cirac, K. Jansen</author>, <title level="a">The temperature dependence of the chiral condensate inthe Schwinger model with Matrix Product States</title> ,<title level="j">PoS</title> <biblScope unit="volume">LATTICE2014</biblScope> ( <date>2014</date>)<biblScope unit="page">302</biblScope> .<idno type="arxiv">arXiv :1412.0596</idno>.</bibl>
 	<bibl><author>S. Kühn, E. Zohar, J. I. Cirac, M. C. Bañuls</author>, <title level="a">Non-abelian string breaking phenomena with matrix product states</title>, <title level="j">Journalof High Energy Physics</title> <biblScope unit="volume">2015</biblScope> ( <biblScope unit="issue">7</biblScope>)( <date>2015</date>)<biblScope unit="page">130</biblScope> .<idno type="DOI">doi :10.1007/JHEP07(2015)130</idno>.URL <ptr type="web">https: //doi.org/10.1007/JHEP07(2015)130</ptr></bibl>
 	<bibl><author>M. C. Bañuls, K. Cichy, J. I. Cirac, K. Jansen, H. Saito</author>, <title level="a">Thermal evolution of the schwinger model with matrix product operators</title>, <title level="j">Phys.Rev .D</title> <biblScope unit="volume">92</biblScope> ( <date>2015</date>)<biblScope unit="page">034519</biblScope> .<idno type="DOI">doi :10.1103/PhysRevD.92.034519</idno>.URL <ptr type="web">https: //link.aps.org/doi/10.1103/PhysRevD.92.034519</ptr></bibl>
 	<bibl><author>M. C. Bañuls, K. Cichy, K. Jansen, H. Saito</author>, <title level="a">Chiral condensate in the schwinger model with matrix product operators</title>, <title level="j">Phys.Rev .D</title> <biblScope unit="volume">93</biblScope> ( <date>2016</date>)<biblScope unit="page">094512</biblScope> .<idno type="DOI">doi :10.1103/PhysRevD.93.094512</idno>.URL <ptr type="web">https: //link.aps.org/doi/10.1103/PhysRevD.93.094512</ptr></bibl>
diff --git a/grobid-trainer/resources/dataset/citation/corpus/1708.00649.training.references.tei.xml b/grobid-trainer/resources/dataset/citation/corpus/1708.00649.training.references.tei.xml
index 978f3a1a21..8595ba0886 100644
--- a/grobid-trainer/resources/dataset/citation/corpus/1708.00649.training.references.tei.xml
+++ b/grobid-trainer/resources/dataset/citation/corpus/1708.00649.training.references.tei.xml
@@ -29,7 +29,7 @@
 	<bibl><author>T.Korzec,U .Wolff</author> ,<title level="j">Nucl .Phys .B</title> <biblScope unit="volume">871</biblScope>( <date>2013</date>) <biblScope unit="page">145</biblScope> [ <idno type="arxiv">arXiv:1212 . 2875</idno>[<note>hep-lat</note>] ].</bibl>
 	<bibl><author>P.N.Meisinger ,M.C. Ogilvie</author>, <idno type="arxiv">arXiv:1306. 1495</idno>[ <note>hep-lat</note>].</bibl>
 	<bibl><author>C.Gattringer,A. Schmidt</author>, <title level="j">Phys. Rev. D</title><biblScope unit="volume">86</biblScope> (<date>2012</date> )<biblScope unit="page">094506</biblScope> [<idno type="arxiv">arXiv : 1208.6472</idno> [ <note>hep-lat</note>]].</bibl>
-	<bibl><author>Y.D.Mercado,C .Gattringer,A .Schmidt</author> ,<title level="j">Phys .Rev .Lett .</title><biblScope unit="volume">111</biblScope> (<date>2013</date>) <biblScope unit="issue">14</biblScope>, <biblScope unit="page">141601</biblScope>[ <idno>arXiv :1307. 6120</idno>[ <note>hep -lat</note>]];</bibl>
+	<bibl><author>Y.D.Mercado,C .Gattringer,A .Schmidt</author> ,<title level="j">Phys .Rev .Lett .</title><biblScope unit="volume">111</biblScope> (<date>2013</date>) <biblScope unit="issue">14</biblScope>, <biblScope unit="page">141601</biblScope>[ <idno type="arxiv">arXiv :1307. 6120</idno>[ <note>hep -lat</note>]];</bibl>
 	<bibl><title level="j">Comput .Phys.Commun.</title><biblScope unit="volume">184</biblScope>( <date>2013</date>) <biblScope unit="page">1535</biblScope>[ <idno type="arxiv">arXiv: 1211. 3436</idno>[<note>hep - lat</note>]].</bibl>
 	<bibl><author>A. Schmidt,P.deForcrand, C. Gattringer</author>, <title level="j">PoS</title><biblScope unit="volume">Lattice 2014</biblScope> (<date>2015</date> )<biblScope unit="page">209</biblScope> [<idno type="arxiv">arXiv : 1501. 06472</idno> [<note>hep- lat</note> ]].</bibl>
 	<bibl><author>C. Gattringer, T. Kloiber, M. Müller-Preussker</author>, <title level="j">Phys. Rev. D</title> <biblScope unit="volume">92</biblScope> (<date>2015</date>) no.<biblScope unit="issue">11</biblScope>, <biblScope unit="page">114508</biblScope> [<idno type="arxiv">arXiv:1508.00681</idno>[ <note>hep-lat</note>]].</bibl>
@@ -66,7 +66,7 @@
 	<bibl><author>H. Fukaya , T. Onogi</author>, <title level="j">Phys. Rev. D</title> <biblScope unit="volume">68</biblScope> (<date>2003</date>) <biblScope unit="page">074503</biblScope> [<idno type="arxiv">hep-lat/0305004</idno>];</bibl>
 	<bibl><title level="j">Phys. Rev. D</title> <biblScope unit="volume">70</biblScope> (<date>2004</date>)<biblScope unit="page">054508</biblScope> [ <idno type="arxiv">hep-lat/0403024</idno>].</bibl>
 	<bibl><author>S. Dürr</author>, <title level="j">Phys. Rev. D</title> <biblScope unit="volume">85</biblScope> (<date>2012</date>) <biblScope unit="page">114503</biblScope> [<idno type="arxiv">arXiv:1203.2560</idno> [<note>hep-lat</note>]];</bibl>
-	<bibl><title level="j">PoS</title> <biblScope unit="volume">LAT 2005</biblScope> (<date>2006</date>)<biblScope unit="page">021</biblScope> [ <idno>hep-lat/0509026</idno>].</bibl>
+	<bibl><title level="j">PoS</title> <biblScope unit="volume">LAT 2005</biblScope> (<date>2006</date>)<biblScope unit="page">021</biblScope> [ <idno type="arxiv">hep-lat/0509026</idno>].</bibl>
 	<bibl><author>S .Dürr ,C .Hölbling</author> ,<title level="j">Phys .Rev .D</title> <biblScope unit="volume">69</biblScope> ( <date>2004</date>)<biblScope unit="page">034503</biblScope> [ <idno type="arxiv">hep-lat/0311002</idno>];</bibl>
 	<bibl><title level="j">Phys. Rev. D</title><biblScope unit="volume">69</biblScope> ( <date>2004</date> )<biblScope unit="page">034503</biblScope>[ <idno type="arxiv">hep -lat/0311002</idno>].</bibl>
 	<bibl><author>C. Gattringer, O. Orasch</author>, <note>work in preparation</note>.</bibl>
diff --git a/grobid-trainer/resources/dataset/citation/corpus/1708.00867.training.references.tei.xml b/grobid-trainer/resources/dataset/citation/corpus/1708.00867.training.references.tei.xml
index 55945ad8db..ea1787a2dd 100644
--- a/grobid-trainer/resources/dataset/citation/corpus/1708.00867.training.references.tei.xml
+++ b/grobid-trainer/resources/dataset/citation/corpus/1708.00867.training.references.tei.xml
@@ -12,7 +12,7 @@
 	<bibl><author>A. Abdesselam et al.</author>, <title level="j">Eur. Phys. J. C</title><biblScope unit="volume">71</biblScope>, <biblScope unit="page">1661</biblScope> (<date>2011</date>), <idno type="arxiv">arXiv:1012.5412</idno>[ <note>hep-ph</note>].</bibl>
 	<bibl><author>A. Altheimer et al.</author>, <title level="j">J. Phys. G</title><biblScope unit="volume">39</biblScope>, <biblScope unit="page">063001</biblScope> (<date>2012</date>), <idno type="arxiv">arXiv:1201.0008</idno>[ <note>hep-ph</note>].</bibl>
 	<bibl><author>A. Altheimer et al.</author>, <title level="j">Eur. Phys. J. C</title><biblScope unit="volume">74</biblScope>, <biblScope unit="page">2792</biblScope> (<date>2014</date>), <idno type="arxiv">arXiv:1311.2708</idno>[ <note>hep-ex</note>].</bibl>
-	<bibl><author>D. Adams et al.</author>, <title level="j">Eur. Phys. J. C75</title>, <biblScope unit="volume">409</biblScope> (<date>2015</date>), <idno>arXiv:1504.00679</idno>[ hep-ph].</bibl>
+	<bibl><author>D. Adams et al.</author>, <title level="j">Eur. Phys. J. C75</title>, <biblScope unit="volume">409</biblScope> (<date>2015</date>), <idno type="arxiv">arXiv:1504.00679</idno>[ hep-ph].</bibl>
 	<bibl><author>J. Gallicchio and M. D. Schwartz</author>, <title level="j">Phys. Rev. Lett.</title> <biblScope unit="volume">107</biblScope>, <biblScope unit="page">172001</biblScope>( <date>2011</date>),<idno type="arxiv">arXiv :1106.3076</idno>[ <note>hep-ph</note>].</bibl>
 	<bibl><author>J. Gallicchio and M. D. Schwartz</author>, <title level="j">JHEP</title> <biblScope unit="volume">04</biblScope>, <biblScope unit="page">090</biblScope> (<date>2013</date>), <idno type="arxiv">arXiv:1211.7038</idno>[ <note>hep-ph</note>].</bibl>
 	<bibl><author>A. J. Larkoski, G. P. Salam, and J. Thaler</author>, <title level="j">JHEP</title> <biblScope unit="volume">06</biblScope>, <biblScope unit="page">108</biblScope>( <date>2013</date>),<idno type="arxiv">arXiv :1305.0007</idno>[ <note>hep-ph</note>].</bibl>
@@ -37,7 +37,7 @@
 	<bibl><author>M. D. Schwartz</author>, <title level="j">Phys. Rev. D</title><biblScope unit="volume">77</biblScope>, <biblScope unit="page">014026</biblScope> (<date>2008</date>), <idno type="arxiv">arXiv:0709.2709</idno>[ <note>hep-ph</note>].</bibl>
 	<bibl><author>G. P. Korchemsky and A. V. Radyushkin</author>, <title level="j">Nucl. Phys. B</title> <biblScope unit="volume">283</biblScope>,<biblScope unit="volume">342</biblScope> ( <date>1987</date>).</bibl>
 		<bibl><author>I. Moult, I. W. Stewart, F. J. Tackmann, andW .J. Waalewijn</author>, <title level="j">Phys. Rev. D</title><biblScope unit="volume">93</biblScope>, <biblScope unit="page">094003</biblScope>( <date>2016</date> ),<idno type="arxiv">arXiv: 1508.02397</idno>[<note>hep- ph</note>].</bibl>
-	<bibl><author>C. Balzereit, T. Mannel, and W. Kilian</author>, <title level="j">Phys. Rev. D</title><biblScope unit="volume">58</biblScope>, <biblScope unit="page">114029</biblScope>( <date>1998</date>),<idno>arXiv :hep-ph/9805297</idno>.</bibl>
+	<bibl><author>C. Balzereit, T. Mannel, and W. Kilian</author>, <title level="j">Phys. Rev. D</title><biblScope unit="volume">58</biblScope>, <biblScope unit="page">114029</biblScope>( <date>1998</date>),<idno type="arxiv">arXiv :hep-ph/9805297</idno>.</bibl>
 	<bibl><author>M. Neubert</author>, <title level="j">Eur. Phys. J. C</title><biblScope unit="volume">40</biblScope>, <biblScope unit="page">165</biblScope> (<date>2005</date>), <idno type="arxiv">arXiv:hep-ph/0408179</idno>.</bibl>
 		<bibl><author>S. Fleming, A. H. Hoang, S. Mantry, and I. W. Stewart</author>, <title level="j">Phys.Rev .D</title><biblScope unit="volume">77</biblScope> ,<biblScope unit="page">114003</biblScope> ( <date>2008</date>),<idno type="arxiv">arXiv :0711.2079</idno>[ <note>hep-ph</note>].</bibl>
 	<bibl><author>G. Kramer and B. Lampe</author>, <title level="j">Z. Phys. C</title><biblScope unit="volume">34</biblScope>, <biblScope unit="page">497</biblScope> (<date>1987</date>), [<note>Erratum:Z .Phys .C42,504(1989)</note>].</bibl>
diff --git a/grobid-trainer/resources/dataset/citation/corpus/1708.00957.training.references.tei.xml b/grobid-trainer/resources/dataset/citation/corpus/1708.00957.training.references.tei.xml
index 33b5668f8e..3f848e9180 100644
--- a/grobid-trainer/resources/dataset/citation/corpus/1708.00957.training.references.tei.xml
+++ b/grobid-trainer/resources/dataset/citation/corpus/1708.00957.training.references.tei.xml
@@ -22,8 +22,8 @@
 		<bibl><author>F. Sanches and S. Weinberg</author>, &quot;<title level="a">A Holographic Entanglement Entropy Conjecture for GeneralSpacetimes</title> ,&quot;<title level="j">Phys .Rev .D</title> <biblScope unit="volume">94</biblScope> ,<biblScope unit="page">084034</biblScope> ( <date>2016</date>),<idno type="arxiv">arXiv :1603.05250</idno>[ <note>hep-th</note>]</bibl>
 	<bibl><author>A. C. Wall</author>, &quot;<title level="m">Maximin Surfaces, and the Strong Subadditivity of the Covariant Holo-graphicEntanglement Entropy</title> &quot;,<idno type="arxiv">arXiv :1211.3494</idno>.</bibl>
 	<bibl><author>R. M. Wald, General Relativity</author>. <title level="a">The University of</title> <publisher>Chicago Press</publisher>, <pubPlace>Chicago</pubPlace>, <date>1984</date>.</bibl>
-	<bibl><author>V. E. Hubeny and M. Rangamani</author>, &quot;<title level="a">Causal Holographic Information</title>,&quot; JHEP <biblScope unit="page">1206</biblScope> (<date>2012</date>)<biblScope unit="volume">114</biblScope> ,<idno>arXiv :1204.1698</idno></bibl>
-	<bibl><author>B. Freivogel and B. Mosk</author>, &quot;<title level="a">Properties of Causal Holographic Information</title>&quot;, <idno>arXiv:1304.7229</idno>.</bibl>
+	<bibl><author>V. E. Hubeny and M. Rangamani</author>, &quot;<title level="a">Causal Holographic Information</title>,&quot; JHEP <biblScope unit="page">1206</biblScope> (<date>2012</date>)<biblScope unit="volume">114</biblScope> ,<idno type="arxiv">arXiv :1204.1698</idno></bibl>
+	<bibl><author>B. Freivogel and B. Mosk</author>, &quot;<title level="a">Properties of Causal Holographic Information</title>&quot;, <idno type="arxiv">arXiv:1304.7229</idno>.</bibl>
 	<bibl><author>W. R. Kelly and A. C. Wall</author>, &quot;<title level="a">Coarse-grained entropy and causal holographic in-formationin AdS /CFT</title>,&quot;<title level="j">JHEP 1403</title> ,<biblScope unit="volume">118</biblScope> ( <date>2014</date>)<idno type="DOI">doi :10.1007/JHEP03(2014)118</idno>[ <idno type="arxiv">arXiv:1309.3610</idno>[<note>hep -th</note>]].</bibl>
 		<bibl><author>N. Engelhardt and A. C. Wall</author>, &quot;<title level="a">No Simple Dual to the Causal Holographic Informa-tion?</title>,&quot;<title level="j">JHEP</title> <biblScope unit="volume">1704</biblScope> ,<biblScope unit="page">134</biblScope> ( <date>2017</date>)<idno type="DOI">doi :10.1007/JHEP04(2017)134</idno>[ <idno type="arxiv">arXiv:1702.01748</idno>[ <note>hep-th</note>]].</bibl>
 	<bibl><author>C. Fefferman and C. R. Graham</author>, &quot;<title level="a">Conformal invariants</title>,&quot; <title level="m">Elie Cartan et les Mathema-tiquesd &apos;aujourd&apos;hui</title>,<title level="s">Asterisque</title> ,p .<biblScope unit="page">95</biblScope> ,<date>1985</date> .</bibl>
diff --git a/grobid-trainer/resources/dataset/citation/corpus/1708.01150.training.references.tei.xml b/grobid-trainer/resources/dataset/citation/corpus/1708.01150.training.references.tei.xml
index 81bed4c725..d22c9bf6e5 100644
--- a/grobid-trainer/resources/dataset/citation/corpus/1708.01150.training.references.tei.xml
+++ b/grobid-trainer/resources/dataset/citation/corpus/1708.01150.training.references.tei.xml
@@ -42,7 +42,7 @@
 	<bibl><author>A. D. Linde</author>, <title level="a">Chaotic Inflation</title>, <title level="j">Phys.Lett.</title>, <biblScope unit="volume">B129</biblScope>, (<date>1983</date>).</bibl>
 	<bibl><author>P. J. Steinhardt</author>, <title level="a">The inflation debate: Is the theory at heart of modern cos-mologydeeply flawed ?</title>,<title level="j">Scientific American</title> ,<date>April ( 2011</date>);</bibl><bibl><author>A .Ijjas ,P .J .Stein -hardt,A. Loeb</author>, <title level="a">Inflationaryschism after Planck2013</title> , <title level="j">Phys. Lett.</title><biblScope unit="volume">B736</biblScope>( <date>2014</date> ).<idno type="arxiv">arXiv: 1402.6980</idno></bibl>
 	<bibl><author>M. Gasperini</author>, <title level="m">Elements of string cosmology</title>, <publisher>Cambridge University Press</publisher> (<date>2007</date>).</bibl>
-	<bibl><author>I. Antoniadis, E. Gava, K. S.</author> <title level="a">Narain Moduli Corrections to Gravitational Couplingsfrom String loops</title> ,<title level="j">Phys .Lett.</title><biblScope unit="volume">B283</biblScope>:<biblScope unit="page">209-212</biblScope>( <date>1992</date>).<idno>arXiv :hep-th/9203071</idno></bibl>
+	<bibl><author>I. Antoniadis, E. Gava, K. S.</author> <title level="a">Narain Moduli Corrections to Gravitational Couplingsfrom String loops</title> ,<title level="j">Phys .Lett.</title><biblScope unit="volume">B283</biblScope>:<biblScope unit="page">209-212</biblScope>( <date>1992</date>).<idno type="arxiv">arXiv :hep-th/9203071</idno></bibl>
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diff --git a/grobid-trainer/resources/dataset/citation/corpus/27-1708.04230.training.references.tei.xml b/grobid-trainer/resources/dataset/citation/corpus/27-1708.04230.training.references.tei.xml
index 2764aeb30c..3465346062 100644
--- a/grobid-trainer/resources/dataset/citation/corpus/27-1708.04230.training.references.tei.xml
+++ b/grobid-trainer/resources/dataset/citation/corpus/27-1708.04230.training.references.tei.xml
@@ -56,7 +56,7 @@
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+	<bibl><author>B. Bradlyn, L. Elcoro, J. Cano, M. G. Vergniory, Z. Wang, C.Felser ,M .I .Aroyo ,and B .A .Bernevig</author> ,&quot; <title level="m">Topologicalquantum chemistry</title>, &quot;<idno type="arxiv">arXiv: 1703.02050</idno>,<date>2017</date>.</bibl>
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diff --git a/grobid-trainer/resources/dataset/citation/corpus/43-2007_31_1181-1184_853674.training.references.tei.xml b/grobid-trainer/resources/dataset/citation/corpus/43-2007_31_1181-1184_853674.training.references.tei.xml
index abb611418b..650b3df0f3 100644
--- a/grobid-trainer/resources/dataset/citation/corpus/43-2007_31_1181-1184_853674.training.references.tei.xml
+++ b/grobid-trainer/resources/dataset/citation/corpus/43-2007_31_1181-1184_853674.training.references.tei.xml
@@ -10,7 +10,7 @@
 		<back>
 <listBibl>
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+	<bibl><author>LIANG Z T, WANG X N.</author> <title level="j">Phys. Lett.</title>, <date>2005</date>, <biblScope unit="volume">B629</biblScope>: <biblScope unit="page">20</biblScope>. <idno type="arxiv">arXiv:nucl-th/0411101</idno></bibl>
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diff --git a/grobid-trainer/resources/dataset/citation/corpus/arxiv_old_style.xml b/grobid-trainer/resources/dataset/citation/corpus/arxiv_old_style.xml
new file mode 100644
index 0000000000..8a35d0e529
--- /dev/null
+++ b/grobid-trainer/resources/dataset/citation/corpus/arxiv_old_style.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<citations>
+  <bibl><author>B.A. Dobrescu</author>, <idno type="arxiv">hep-ph/9510424</idno>.</bibl>
+  <bibl><author>K.R. Dienes, C. Kolda and J. March-Russell</author>, <idno type="arxiv">hep-ph/9610479</idno>.</bibl>
+  <bibl><author>S.P. Martin</author>, <idno type="arxiv">hep-ph/9608224</idno>.</bibl>
+</citations>