@book{WaDeS199,
  address = {Vienna},
  author = {Wagner, Ralf},
  booktitle = {Workshop on Operations Reseach in Marketing},
  interhash = {ccc1151462326a9c8f20d0494f7c0d18},
  intrahash = {4b6651a3ea394f8d636b2dffb9692ab9},
  title = {Remarks on the Behavioristic Analysis of Competitive Reactions},
  year = 1999
}

@incollection{DeWaTeC99,
  address = {Wiesbaden},
  author = {Decker, R. and Wagner, R. and T., Temme},
  booktitle = {Marktforschung: Methoden, Anwendungen, Praxisbeispiele},
  edition = 2,
  editor = {Homburg, C. and Herrmann, A.},
  interhash = {d9921db0d9173189aba16216b2904f61},
  intrahash = {80ca0145dc4cb0c19f714900b6470794},
  pages = {79 - 98},
  publisher = {Gabler},
  title = {{F}ehlende {W}erte in der {M}arktforschung},
  year = 1999
}

@techreport{WaBoKeW99,
  address = {Bielefeld},
  author = {Wagner, R. and Bornemeyer, C. and Kerkojus, S.},
  institution = {in: Frohn, J. and Gebhardt, K.: Bielefeld 2000plus - Forschungsprojekte zur Region},
  interhash = {8c692612c81ab5a578a7dd529894514a},
  intrahash = {75469ec77027a2383447c6094d78b0aa},
  number = 5,
  title = {{I}mageanalyse des {B}ielefelder {E}inzelhandels},
  year = 1999
}

@incollection{DeWaC99,
  address = {Wiesbaden},
  author = {Decker, R. and Wagner, R.},
  booktitle = {{M}arktforschung: {M}ethoden, {A}nwendungen, {P}raxisbeispiele},
  edition = 2,
  editor = {Homburg, C. and Herrmann, A.},
  interhash = {8131f608fba8932c89d58695f3c0458a},
  intrahash = {7ffbf5732c81d2b7b576d2e84429da38},
  pages = {549 - 578},
  publisher = {Gabler},
  title = {{L}og-lineare {M}odelle und {L}ogit},
  year = 1999
}

@inproceedings{WaP99,
  address = {Berlin},
  author = {Wagner, R.},
  booktitle = {{C}lassification in the {I}nformation {A}ge},
  editor = {Gaul, W. and Locarek-Junge, H.},
  interhash = {48add582e4f56ba068f38fd0fa8b260d},
  intrahash = {3d9742be7ffd6a6621afb7c551611ea8},
  pages = {536 -- 544},
  publisher = {Springer},
  title = {{M}odeling and {M}easuring of {C}ompetitive {R}eactions to {C}hanges of {M}arketing {M}ix at the {R}etail {L}evel},
  year = 1999
}