@article{DeWaKnJ98,
  author = {Decker, R. and Wagner, R. and Knauff, N.},
  interhash = {8b1edb1228d2d0aaab2514942226abc6},
  intrahash = {ea256d7f4a47076c51c3cdd6ce5bac13},
  journal = {Marktforschung \& Management},
  number = 5,
  pages = {172 - 176},
  title = {{D}ata {W}arehouse - {E}in {I}nstrument f\"ur {M}arktforschung und {M}anagement},
  volume = 42,
  year = 1998
}

@techreport{DeWaW98,
  address = {Universit\"at Bielefeld},
  author = {Decker, R. and Wagner, R.},
  institution = {Fakultät für Wirtschaftswissenschaften},
  interhash = {1dad120aae95cfc2149010d768fcaeff},
  intrahash = {c966e915699305b65eab7149167383f4},
  number = 383,
  title = {{L}og-lineare {M}odelle in der {M}arktforschung},
  year = 1998
}

@book{WaS198,
  address = {Dresden},
  author = {Wagner, Ralf},
  booktitle = {22nd Annual Conference of the German Classification Society},
  interhash = {3a5166788612667ac34b1423fdd8f32c},
  intrahash = {be142821af16ac92746bbfa66237cc86},
  title = {Modeling and Measuring of Competitive Reactions to Changes of Marketing Mix at the Retail Level},
  year = 1998
}

@article{WaTeDeJ98,
  author = {Wagner, R. and Temme, T. and Decker, R.},
  interhash = {db39082e5c67fcb230d20bc0421a0ffd},
  intrahash = {7fb5b2fd90d12274e8ca25a0ef778348},
  journal = {GfK Jahrbuch der Absatz- und Verbrauchsforschung},
  number = 4,
  pages = {395 -- 417},
  title = {{D}ie {B}ehandlung fehlender {W}erte in der angewandten {M}arktforschung},
  volume = 44,
  year = 1998
}