@book{SchmeerLiermannSeverinetal.2001,
  author    = {Schmeer, Ernst and Liermann, Angelika and Severin, Wolfgang and Thiele, Wolfgang},
  title     = {PV in Lehre und Forschung : die PV-Anlage der Universit{\"a}t Potsdam},
  year      = {2001},
  language  = {de}
}
@book{LaabsSeverin1994,
  author    = {Laabs, Hans-Joachim and Severin, Wolfgang},
  title     = {Ein Interface im Eigenbau},
  publisher = {Medienp{\"a}dagogisches Zentrum},
  address   = {Potsdam},
  pages     = {126 S.},
  year      = {1994},
  language  = {de}
}
@book{LaabsSeverin1995,
  author    = {Laabs, Hans-Joachim and Severin, Wolfgang},
  title     = {Aufgabensammlung f{\"u}r den Informatikunterricht : Turbo Pascal},
  publisher = {P{\"a}dagogisches Landesinstitut Brandenburg},
  address   = {Ludwigsfelde/Struveshof},
  pages     = {58 S.},
  year      = {1995},
  language  = {de}
}