@book{MangMaier1990,
  author    = {Mang, Thomas and Maier, Josef},
  title     = {Verfahren zur Herstellung einer Festphasenmatrix, an die Haptene kovalent gebunden sind},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {M{\"u}nchen},
  year      = {1990},
  language  = {de}
}
@book{BaueerGilchRathetal.1990,
  author    = {Ba{\"u}er, Herbert and Gilch, Heinz Gerhard and Rath, Walter and Sch{\"u}mann, Uwe},
  title     = {Moisture-curing polyurethane-based hot-melt compositions = Feuchth{\"a}rtbare Heisschmelz-Zusammensetzungen auf Polyurethanbasis},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {M{\"u}nchen},
  year      = {1990},
  language  = {en}
}