@inproceedings{DBLP:conf/bpm/FettkeLZ05,
  author    = {Peter Fettke and
               Peter Loos and
               J{\"o}rg Zwicker},
  title     = {Business Process Reference Models: Survey and Classification},
  booktitle = {Business Process Management Workshops},
  year      = {2005},
  pages     = {469-483},
  ee        = {http://dx.doi.org/10.1007/11678564_44},
  crossref  = {DBLP:conf/bpm/2005w},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/bpm/2005w,
  editor    = {Christoph Bussler and
               Armin Haller},
  title     = {Business Process Management Workshops, BPM 2005 International
               Workshops, BPI, BPD, ENEI, BPRM, WSCOBPM, BPS, Nancy, France,
               September 5, 2005, Revised Selected Papers},
  booktitle = {Business Process Management Workshops},
  volume    = {3812},
  year      = {2006},
  isbn      = {3-540-32595-6},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}