isl was written by
Sven Verdoolaege
+2006-2007 Leiden Institute of Advanced Computer Science
+ Universiteit Leiden
+ Niels Bohrweg 1
+ 2333 CA Leiden
+ The Netherlands
2008-2009 K.U.Leuven
Departement Computerwetenschappen
Celestijnenlaan 200A
B-3001 Leuven
Belgium
+2010 INRIA Saclay - Ile-de-France
+ Parc Club Orsay Universite, ZAC des vignes, 4 rue Jacques Monod
+ 91893 Orsay
+ France
+
+The quicksort implementation was written by Douglas C. Schmidt.