@article{FeWaJ03,
  author = {Feldmann, M. and Wagner, R.},
  title = {{S}trukturieren mit {M}ultitrees: {E}in {F}achkonzept zur verbesserten {N}avigation in {H}ypermedia},
  journal = {Wirtschaftsinformatik},
  year = {2003},
  volume = {45},
  number = {6},
  pages = {589 - 598}
}

@inproceedings{WaP03,
  author = {Wagner, R.},
  title = {{A}re {O}dd {P}rices {M}eaningful {P}rice {T}hresholds? {A}n {I}nvestigation by {G}eneralised {C}ross {V}alidation},
  booktitle = {{M}arketing: {R}esponsible and {R}elevant? {P}roceedings of the 32nd {E}{M}{A}{C} {C}onference},
  publisher = {EMAC},
  year = {2003}
}

@book{WaS103,
  author = {Wagner, Ralf},
  title = {Are Odd Prices Meaningful Price Thresholds? An Investigation by Generalised Cross Validation},
  booktitle = {32nd EMAC Conference},
  year = {2003}
}

@book{WaS203,
  author = {Wagner, Ralf},
  title = {Mining Promising Qualification Patterns},
  booktitle = {27th Annual GfKl Conference},
  year = {2003}
}