Reference:
Tomi Janhunen. asptools 1.0 — A tool collection for answer set programming. http://www.tcs.hut.fi/Software/asptools/, 2007. Computer Program.
Suggested BibTeX entry:
@misc{ASPTOOLS07, author = {Tomi Janhunen}, howpublished = {http://www.tcs.hut.fi/Software/asptools/}, note = {Computer Program}, title = {asptools 1.0 --- {A} Tool Collection for Answer Set Programming}, year = {2007}, }