@book{Helmig2013,
  author    = {Helmig, Ilka},
  title     = {Ph{\´e}notype : [anl{\"a}sslich der Ausstellung "Ilka Helmig, Ph{\´e}notype" im Ludwig Forum Aachen, 30. Juni - 01. September 2013]},
  editor    = {Franzen, Brigitte},
  publisher = {Ludwig-Forum},
  address   = {Aachen},
  isbn      = {978-3-929292-50-3},
  pages     = {112 S. : {\"u}berw. Ill.},
  year      = {2013},
  language  = {de}
}
@book{AnthrakidisJahnRitzetal.2013,
  author    = {Anthrakidis, Anette and Jahn, Roland and Ritz, Thomas and Sch{\"o}ttler, Mirjam and Wallenborn, Ramona and Warmke, Gisela},
  title     = {Urbanes eCarSharing in einer vernetzten Gesellschaft},
  edition   = {1. Aufl.},
  publisher = {Steinbeis-Edition},
  address   = {Stuttgart},
  isbn      = {978-3-943356-70-0},
  pages     = {148 S. : zahlr. Ill. und graph. Darst.},
  year      = {2013},
  language  = {de}
}