@article{ekrs-vkm-01a,
  author = {Michael Engelhardt and Andreas Karpati and Torsten Rack and Thomas C. Schmidt},
  journal = {European Journ. Open and Distance Learning EURODL},
  title = {{A Virtual Knowledge Market-Place}},
  year = {2001},
  volume = {online},
  theme = {hp|cw},
  url = {http://www.eurodl.org},
}