HaverkortW09'

@inproceedings{DBLP:conf/alenex/HaverkortW09,
  author    = {Herman J. Haverkort and
               Freek van Walderveen},
  title     = {Four-Dimensional Hilbert Curves for R-Trees},
  booktitle = {ALENEX},
  year      = {2009},
  pages     = {63-73},
  ee        = {http://www.siam.org/proceedings/alenex/2009/alx09_007_haverkorth.pdf},
  crossref  = {DBLP:conf/alenex/2009},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@proceedings{DBLP:conf/alenex/2009,
  editor    = {Irene Finocchi and
               John Hershberger},
  title     = {Proceedings of the Eleventh Workshop on Algorithm Engineering
               and Experiments, ALENEX 2009, New York, New York, USA, January
               3, 2009},
  booktitle = {ALENEX},
  publisher = {SIAM},
  year      = {2009},
  isbn      = {978-0-898719-30-7},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}