@TECHREPORT{harrer2012betsy,
  author = {Simon Harrer and J\"org Lenhard},
  title = {{Betsy -- A BPEL Engine Test System}},
  institution = {Otto-Friedrich Universität Bamberg},
  year = {2012},
  type = {Bamberger Beitr\"age zur Wirtschaftsinformatik und Angewandten Informatik,},
  number = {no. 90},
  month = {July}
}