@article{LaackRefischOhnsorgeetal.1984,
  author    = {Laack, Walter van and Refisch, A. and Ohnsorge, J. and D{\"u}rselen, L.},
  title     = {Proximaler Femurteilersatz - Alternative zum Schaftwechsel zementfixierter H{\"u}ftendoprothesen},
  series = {Orthop{\"a}dische Praxis. 20 (1984), H. 11},
  journal   = {Orthop{\"a}dische Praxis. 20 (1984), H. 11},
  isbn      = {0030-588x},
  pages     = {856},
  year      = {1984},
  language  = {de}
}
@book{SimonisBruecher1984,
  author    = {Simonis, Rainer and Br{\"u}cher, Heiner},
  title     = {Verhalten von radioaktivem Krypton-85 in der Tiefsee : Abschlußbericht f{\"u}r d. Berichtszeitraum 1.10.1980 - 31.3.1983},
  publisher = {Zentralbibliothek d. Kernforschungsanlage},
  address   = {J{\"u}lich},
  pages     = {87 S.},
  year      = {1984},
  subject      = {Krypton-85},
  language  = {de}
}