@InProceedings{DBLP:conf/zeus/KoppLUW11,
  author      = {Oliver Kopp and Frank Leymann and Tobias Unger and Sebastian Wagner},
  title       = {Towards The Essential Flow Model},
  bibsource   = {dblp computer science bibliography, http://dblp.org},
  booktitle = {3rd Central-European Workshop on Services and their Composition, Services und ihre Komposition, {ZEUS} 2011, Karlsruhe, Germany, February 21-22, 2011. Proceedings},
}