@ARTICLE{L-WS04,
  author  = {Stefan Fischer and Winfried Lamersdorf and Norbert Luttenberger},
  title   = {Web Services},
  journal = {PIK - Praxis der Informationsverarbeitung und Kommunikation},
  year    = {2004},
  pages   = {130-166},
  month   = {9}
}