Martin Kuhlemann Marko Rosenmüller Sven Apel Thomas Leich On the duality of aspect-oriented and feature-oriented design patterns. 5 2007 ACP4IS http://doi.acm.org/10.1145/1233901.1233906 conf/aosd/2007acp4is db/conf/aosd/acp4is2007.html#KuhlemannRAL07