@incollection{KreebSeifert1998,
  author    = {Kreeb, Martin M. and Seifert, Eberhard K.},
  title     = {Umweltinformationssysteme},
  booktitle = {Das umweltbewu{ß}te Unternehmen : die Zukunft beginnt heute},
  editor    = {Winter, Georg},
  publisher = {Vahlen},
  address   = {M{\"u}nchen},
  pages     = {903 -- 912},
  year      = {1998},
  language  = {de}
}