@inproceedings{DBLP:conf/or/HaijemaWD04,
  author    = {Ren{\'e} Haijema and
               Jan van der Wal and
               Nico M. van Dijk},
  title     = {Blood Platelet Production: a multi-type perishable inventory
               problem},
  booktitle = {OR},
  year      = {2004},
  pages     = {84-92},
  ee        = {http://dx.doi.org/10.1007/3-540-27679-3_11},
  crossref  = {DBLP:conf/or/2004},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/or/2004,
  editor    = {Hein A. Fleuren and
               Dick den Hertog and
               Peter M. Kort},
  title     = {Operations Research, Proceedings 2004, Selected Papers of
               the Annual International Conference of the German Operations
               Research Society (GOR), Jointly Organized with the Netherlands
               Society for Operations Research (NGB), Tilburg, The Netherlands,
               September 1-3, 2004},
  booktitle = {OR},
  year      = {2005},
  isbn      = {978-3-540-24274-1},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}