Chang01'

BibTeX

@article{DBLP:journals/iandc/Chang01,
  author    = {Richard Chang},
  title     = {Bounded Queries, Approximations, and the Boolean Hierarchy},
  journal   = {Inf. Comput.},
  volume    = {169},
  number    = {2},
  year      = {2001},
  pages     = {129-159},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}