@book{Scherer1989,
  author    = {Scherer, Ulrich W.},
  title     = {Untersuchungen zur Synthese und chemischen Charakterisierung sehr schwerer Elemente / Ulrich W. Scherer},
  publisher = {Gesellschaft f{\"u}r Schwerionenforschung mbH},
  address   = {Darmstadt},
  pages     = {123 S.},
  year      = {1989},
  language  = {de}
}
@book{Mang1989,
  author    = {Mang, Thomas},
  title     = {Verfahren zur Herstellung einer haptenisierten Polysaccharidmatrix},
  publisher = {Europ{\"a}isches Patentamt},
  address   = {M{\"u}nchen},
  year      = {1989},
  language  = {de}
}