@book{MerschenzQuack1987,
  author    = {Merschenz-Quack, Angelika},
  title     = {Halogenide und Hydrate von Oxos{\"a}uren des Schwefels : Beitr. zur Kristall- u. Strukturchemie},
  address   = {D{\"u}sseldorf},
  pages     = {104 S. : zahlr. Ill., graph. Darst.},
  year      = {1987},
  language  = {de}
}
@book{Lassonczyk1987,
  author    = {Lassonczyk, Beate},
  title     = {Immobilisierung l{\"o}slicher organischer Stoffe aus Auflagehorizonten in Sandb{\"o}den},
  address   = {Bonn},
  pages     = {140 S. : graph. Darst.},
  year      = {1987},
  language  = {de}
}
@book{Wosnitza1987,
  author    = {Wosnitza, Franz},
  title     = {Werkzeuge des MIMOLA-Hardware-Entwurfssystems. / Kelle, K. ; Kr{\"u}ger, G. ; Marwedel, P. ; Nowak, L. ; Terasa, L. ; Wosnitza, F.},
  publisher = {Inst., Univ.},
  address   = {Kiel},
  pages     = {187 S.},
  year      = {1987},
  language  = {de}
}