@INPROCEEDINGS{Zirpins2007,
  author    = {Christian Zirpins},
  title     = {A Conceptual Model for Virtual Service Enterprises},
  booktitle = {IADIS International Conference, e-Society 2007, Lisbon, Portugal, 3-6 July 2007},
  year      = {2007},
  month     = {1}
}