@book{FrankKonzelmann2009,
  author    = {J{\"u}rgen Frank and Eberhard Konzelmann},
  title     = {Die K{\"a}fer Baden-W{\"u}rttembergs 1950 - 2000},
  edition   = {1. Aufl.},
  isbn      = {3-88251-281-4},
  year      = {2009},
}