@article{DBLP:journals/sosym/RosaADH09,
  author    = {Marcello La Rosa and
               Wil M. P. van der Aalst and
               Marlon Dumas and
               Arthur H. M. ter Hofstede},
  title     = {Questionnaire-based variability modeling for system configuration},
  journal   = {Software and System Modeling},
  volume    = {8},
  number    = {2},
  year      = {2009},
  pages     = {251-274},
  ee        = {http://dx.doi.org/10.1007/s10270-008-0090-3},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}