diff --git a/.github/workflows/runtests.yml b/.github/workflows/runtests.yml
index f9ba8f81..8534273f 100644
--- a/.github/workflows/runtests.yml
+++ b/.github/workflows/runtests.yml
@@ -7,10 +7,10 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        julia-version: ['1.0', '1.3']
+        julia-version: ['1.0', '1.3', '1.4']
         os: [ubuntu-latest, macOS-latest]
       fail-fast: true
-    
+
     steps:
       - uses: actions/checkout@v1.0.0
       - name: "Set up Julia"
@@ -22,15 +22,15 @@ jobs:
       - uses: julia-actions/julia-uploadcodecov@latest
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
-  
+
   test-julia-nightly:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        julia-version: ['^1.4.0-rc1', 'nightly']
+        julia-version: ['nightly']
         os: [ubuntu-latest, macOS-latest]
       fail-fast: false
-    
+
     steps:
       - uses: actions/checkout@v1.0.0
       - name: "Set up Julia"
diff --git a/src/Polymake.jl b/src/Polymake.jl
index a00b08b7..5e19b251 100644
--- a/src/Polymake.jl
+++ b/src/Polymake.jl
@@ -1,3 +1,11 @@
+"""
+`Polymake.jl` is the Julia interface to `polymake`, an open source software for research in polyhedral geometry.
+
+For more information see:
+ > https://polymake.org/doku.php
+ >
+ > https://github.com/oscar-system/Polymake.jl
+"""
 module Polymake
 
 export @pm, @convert_to, visual
diff --git a/src/util.jl b/src/util.jl
index 79452e54..ebf3545d 100644
--- a/src/util.jl
+++ b/src/util.jl
@@ -30,9 +30,9 @@ function shell_execute(str::AbstractString)
 end
 
 function cite(;format=:bibtex)
-    cite_str = split(shell_execute("""help "core/citation";""")[2], "\n\n")[2]
+    cite_str = match(r"(?<bibtex>@incollection.*\n (\s*\w*\s?= .*\n)+\s*\})", shell_execute("""help "core/citation";""").stdout)
     if format == :bibtex
-        return cite_str
+        return print(cite_str[:bibtex])
     else
         throw("The only supported citation format is :bibtex")
     end