%0 Conference Paper %K Model-driven Engineering %K Software Product Lines %B Sixth International Workshop on Variability Modelling of Software-Intensive Systems, Leipzig, Germany, January 25-27, 2012. Proceedings %D 2012 %P 193-199 %R 10.1145/2110147.2110169 %T Modeling rationale over time to support product line evolution planning %U http://doi.acm.org/10.1145/2110147.2110169 %4 DBLP:conf/vamos/2012