@electronic{Schermann.2011,
  address = {Wiesbaden},
  author = {Schermann, Michael},
  interhash = {3f0aa46ff3d5aaead19ca6add9919e8a},
  intrahash = {a4af8db0e7b10f8b70995f381693cf60},
  isbn = {9783834965080 3834965081 9783834923387 3834923389},
  publisher = {Gabler},
  refid = {740935594},
  title = {Risk Service Engineering Informationsmodelle für das Risikomanagement},
  url = {http://www.worldcat.org/search?qt=worldcat_org_all&q=9783834923387},
  year = 2011
}

@book{Metzler.2004,
  address = {Lohmar},
  author = {Metzler, Leonhard and Pohle, Klaus},
  edition = {1. Aufl.},
  interhash = {267078527c892e5f48c786b617b1e6b4},
  intrahash = {2d9165cd16b86f5304aabe74f7c9506d},
  isbn = {3899363061},
  publisher = {Eul},
  title = {Risikoaggregation im industriellen Controlling},
  url = {http://www.gbv.de/dms/zbw/475066618.pdf},
  year = 2004
}