@book{MarquardtMauMayerMikelskis1993,
  author    = {Brunhilde Marquardt-Mau and J{\"u}rgen Mayer and Helmut Mikelskis},
  title     = {Umwelt : Lexikon {\"o}kologisches Grundwissen},
  volume    = {6337},
  isbn      = {3-499-16337-3},
  year      = {1993},
}