Georg Langs Philipp Peloschek Rene Donner Michael Reiter Horst Bischof Active Feature Models. 417-420 2006 conf/icpr/2006 ICPR (1) https://doi.org/10.1109/ICPR.2006.207 https://doi.ieeecomputersociety.org/10.1109/ICPR.2006.207 https://www.wikidata.org/entity/Q63388149 db/conf/icpr/icpr2006-1.html#LangsPDRB06