diff --git a/README.md b/README.md
index eabff41..cc0d079 100644
--- a/README.md
+++ b/README.md
@@ -6,8 +6,7 @@
 ## Introduction
 
 The aim of this project is to implement a fast species delimitation method,
-based on PTP (Zhang et al. 2013) and the methods and models proposed by
-Pons et al. (2006) and Fujisawa et al. (2013). The new tool should:
+based on PTP (Zhang et al. 2013). The new tool should:
 
 * have an open source code with an appropriate open source license.
 * 64-bit multi-threaded design that handles very large datasets.
@@ -180,16 +179,6 @@ The code is currently licensed under the [GNU Affero General Public License vers
 *Bioinformatics*, 29(22):2869-2876.
 doi:[10.1093/bioinformatics/btt499](http://dx.doi.org/10.1093/bioinformatics/btt499)
 
-* Fujisawa T., Barraclough TG. (2013)
-**Delimiting Species Using Single-Locus Data and the Generalized Mixed Yule Coalescent Approach: A Revised Method and Evaluation on Simulated Data Sets.**
-*Systematic Biology*, 62(5):707-724.
-doi:[10.1093/sysbio/syt033](http://dx.doi.org/10.1093/sysbio/syt033)
-
-* Pons J., Barraclough T., Gomez-Zurita J., Cardoso A., Duran AP, Hazell S., Kamoun S., Sumlin WD, Vogler AP. (2006)
-**Sequence-Based Species Delimitation for the DNA Taxonomy of Undescribed Insects.**
-*Systematic Biology*, 55(4):595-609.
-doi:[10.1080/10635150600852011](http://dx.doi.org/10.1080/10635150600852011)
-
 * Nguyen XV, Epps J., Bailey J. (2010)
 **Information Theoretic Measures for Clustering Comparison: Variants, Properties, Normalization and Correction for Chance.**
 *Journal of Machine Learning Research*, 11:2837-2854.