@book{Hoever2013,
  author    = {Hoever, Georg},
  title     = {H{\"o}here Mathematik kompakt},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-642-30334-0},
  pages     = {X, 245 S.},
  year      = {2013},
  language  = {de}
}
@book{Hoever2013,
  author    = {Hoever, Georg},
  title     = {Arbeitsbuch h{\"o}here Mathematik : Aufgaben mit vollst{\"a}ndig durchgerechneten L{\"o}sungen},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-642-30336-4},
  pages     = {XII, 524 S.},
  year      = {2013},
  language  = {de}
}
@book{BochmannRitz2013,
  author    = {Bochmann, Sandra and Ritz, Thomas},
  title     = {Prototyping tools for mobile applications},
  publisher = {Steinbeis-Ed.},
  address   = {Stuttgart},
  isbn      = {978-3-943356-45-8},
  pages     = {234 S. : Ill., graph. Darst.},
  year      = {2013},
  language  = {en}
}
@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}
}
@book{DavidBenkner2013,
  author    = {David, Klaus and Benkner, Thorsten},
  title     = {Digitale Mobilfunksysteme},
  number    = {Repr. 1996},
  publisher = {Vieweg \& Teubner},
  address   = {Wiesbaden},
  isbn      = {978-3-322-92768-2},
  pages     = {XIII, 458 S.},
  year      = {2013},
  language  = {de}
}