@article{DBLP:journals/debu/YalamanchiKR05,
  author    = {Aravind Yalamanchi and
               Kothuri Venkata Ravi Kanth and
               Siva Ravada},
  title     = {Spatial Expressions and Rules for Location-based Services
               in Oracle},
  journal   = {IEEE Data Eng. Bull.},
  volume    = {28},
  number    = {3},
  year      = {2005},
  pages     = {27-34},
  ee        = {ftp://ftp.research.microsoft.com/pub/debull/A05sept/ravi.ps},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}