diff --git a/biblio-web.bib b/biblio-web.bib
index 4e84e7c..2af1aca 100644
--- a/biblio-web.bib
+++ b/biblio-web.bib
@@ -14,3 +14,51 @@
 	year      = {2004},
 	urldate   = {2012-07-23}
 }
+
+@misc{automata-wiki,
+	author    = {Frits Vaandrager and
+	             Fides Aarts and
+	             Petra van den Bos and
+	             Alexander Fedotov and
+	             Paul Fiterau-Brostean and
+	             Falk Howar and
+	             Harco Kuppens and
+	             Joshua Moerman and
+	             Daniel Neider and
+	             Erik Poll and
+	             Joeri de Ruiter},
+	title     = {The Automata Wiki},
+	note      = {Website},
+	url       = {http://automata.cs.ru.nl/}
+}
+
+@misc{minimal-separating-sequences-code,
+	author    = {Rick Smetsers and
+	             Joshua Moerman},
+	title     = {Partition},
+	note      = {Website},
+	url       = {https://gitlab.science.ru.nl/rick/partition/}
+}
+
+@misc{ons-code,
+	author    = {David Venhoek and
+	             Joshua Moerman},
+	title     = {ONS},
+	note      = {Website},
+	url       = {https://github.com/davidv1992/ONS}
+}
+
+@misc{hybrid-ads-code,
+	author    = {Joshua Moerman},
+	title     = {Hybrid {ADS}},
+	note      = {Website},
+	url       = {https://gitlab.science.ru.nl/moerman/hybrid-ads}
+}
+
+@misc{lois-lstar-code,
+	url       = {github.com/eryxcc/lois/blob/master/tests/learning.cpp}
+}
+
+@misc{nominal-lstar-conjecture,
+	url       = {joshuamoerman.nl/papers/2017/17popl-learning-nominal-automata.html}
+}
diff --git a/content.tex b/content.tex
index bfe4f5d..c8a2d08 100644
--- a/content.tex
+++ b/content.tex
@@ -26,13 +26,13 @@
 \startbodymatter
 \component content/introduction
 
-\startpart[title={Testing Techniques}]
+\startpart[title={Testing Techniques}, reference=part:testing]
 \component content/test-methods
 \component content/applying-automata-learning
 \component content/minimal-separating-sequences
 \stoppart
 
-\startpart[title={Nominal Techniques}]
+\startpart[title={Nominal Techniques}, reference=part:nominal]
 \component content/learning-nominal-automata
 \component content/ordered-nominal-sets
 \component content/separated-nominal-automata
diff --git a/content/test-methods.tex b/content/test-methods.tex
index c68c402..9e691be 100644
--- a/content/test-methods.tex
+++ b/content/test-methods.tex
@@ -1211,7 +1211,7 @@ Recently, \citet[GrozSPO16] give a deterministic learning algorithm for non-rese
 
 Many of the methods described here are benchmarked on small or random Mealy machines by \citet[DorofeevaEMCY10, EndoS13].
 The benchmarks are of limited scope, the machine from \in{Chapter}[chap:applying-automata-learning], for instance, is neither small nor random.
-For this reason, we started to collect more realistic benchmarks at \href{http://automata.cs.ru.nl/}.
+For this reason, we started to collect more realistic benchmarks at \citeurl[automata-wiki].
 
 
 \stopsection
diff --git a/environment/bib.tex b/environment/bib.tex
index b32c5b8..b9fcc4e 100644
--- a/environment/bib.tex
+++ b/environment/bib.tex
@@ -12,9 +12,12 @@
 \usebtxdataset[../biblio-web.bib]
 
 \setupbtx[apa:cite][etallimit=2,separator:4={ and }]
+\setupbtx[apa:cite:url[left={}, right={}]
 % interaction in de lijst lijkt stuk te zijn?
-\setupbtx[apa:list][interaction=stop]
+\setupbtx[apa:list][interaction=no]
 \setupbtxrendering[pagestate=start] % print pagina nummers
+\setupbtxlist[apa][margin=1.75em]
+
 
 % The dblp database ignores Pauls nice a-breve and s-comma
 \btxremapauthor [Paul Fiterau{-}Brostean] [Paul Fiterău-Broștean]
@@ -27,6 +30,7 @@
 \def\citenp[#1]{\cite[left=,right=][#1]}   % Bla and Foo, 2015
 \def\citet[#1]{\cite[authoryears][#1]}     % Bla and Foo (2015)
 \def\citep[#1]{\cite[authoryear][#1]}      % (Bla and Foo, 2015)
+\def\citeurl[#1]{\cite[alternative=url,left=,right=][#1]} % url
 
 %\cite[lefttext={See },righttext={ p.\nbsp yy}][book]  -> (See Bla, Foo & Baz, 2015, p. yy)