UllmanG88'

BibTeX

@article{DBLP:journals/algorithmica/UllmanG88,
  author    = {Jeffrey D. Ullman and
               Allen Van Gelder},
  title     = {Parallel Complexity of Logical Query Programs},
  journal   = {Algorithmica},
  volume    = {3},
  year      = {1988},
  pages     = {5-42},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}