@article{DBLP:journals/jcss/PearceV12,
author = {David Pearce and
Agust\'{\i}n Valverde},
title = {Synonymous theories and knowledge representations in answer
set programming},
journal = {J. Comput. Syst. Sci.},
volume = {78},
number = {1},
year = {2012},
pages = {86-104},
ee = {http://dx.doi.org/10.1016/j.jcss.2011.02.013},
bibsource = {DBLP, http://dblp.uni-trier.de}
}