@article{DBLP:journals/jcss/AllenderBISV09,
author = {Eric Allender and
Michael Bauland and
Neil Immerman and
Henning Schnoor and
Heribert Vollmer},
title = {The complexity of satisfiability problems: Refining Schaefer's
theorem},
journal = {J. Comput. Syst. Sci.},
volume = {75},
number = {4},
year = {2009},
pages = {245-254},
ee = {http://dx.doi.org/10.1016/j.jcss.2008.11.001},
bibsource = {DBLP, http://dblp.uni-trier.de}
}