LuO93'

@article{DBLP:journals/debu/LuO93,
  author    = {Hongjun Lu and
               Beng Chin Ooi},
  title     = {Spatial Indexing: Past and Future},
  journal   = {IEEE Data Eng. Bull.},
  volume    = {16},
  number    = {3},
  year      = {1993},
  pages     = {16-21},
  ee        = {http://sites.computer.org/debull/93SEP-CD.pdf},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}