@article{DBLP:journals/ai/Jackson92,
author = {Philip C. Jackson Jr.},
title = {Proving Unsatisfiability for Problems with Constant Cubic
Sparsity},
journal = {Artif. Intell.},
volume = {57},
number = {1},
year = {1992},
pages = {125-137},
ee = {http://dx.doi.org/10.1016/0004-3702(92)90107-9},
bibsource = {DBLP, http://dblp.uni-trier.de}
}