@article{DBLP:journals/isci/Brown87,
author = {Paul Walton Purdom Jr. and
Cynthia A. Brown},
title = {Polynomial-average-time satisfiability problems},
journal = {Inf. Sci.},
volume = {41},
number = {1},
year = {1987},
pages = {23-42},
ee = {http://dx.doi.org/10.1016/0020-0255(87)90003-X},
bibsource = {DBLP, http://dblp.uni-trier.de}
}