ChaudhuriS95'

@article{DBLP:journals/debu/ChaudhuriS95,
  author    = {Surajit Chaudhuri and
               Kyuseok Shim},
  title     = {An Overview of Cost-based Optimization of Queries with Aggregates},
  journal   = {IEEE Data Eng. Bull.},
  volume    = {18},
  number    = {3},
  year      = {1995},
  pages     = {3-9},
  ee        = {http://sites.computer.org/debull/95SEP-CD.pdf},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}