Copy and paste this link:
http://journals.cambridge.org/action/displayAbstract?aid=389967
Copy and paste this citation
KATHRIN KONCZAK,
THOMAS LINKE
and TORSTEN SCHAUB
(2006).
Graphs and colorings for answer set programming. Theory and Practice of Logic Programming, 6
,
pp 61-106
doi:10.1017/S1471068405002528