On Global Multidatabase Query Optimization.

@article{DBLP:journals/sigmod/LuOG92,
  author    = {Hongjun Lu and
               Beng Chin Ooi and
               Cheng Hian Goh},
  title     = {On Global Multidatabase Query Optimization},
  journal   = {SIGMOD Record},
  volume    = {21},
  number    = {4},
  year      = {1992},
  pages     = {6-11},
  ee        = {http://doi.acm.org/10.1145/141818.141819, db/journals/sigmod/LuOG92.html},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

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