@article{DBLP:journals/tplp/KonczakLS06,
  author = {Konczak, Kathrin and Linke, Thomas and Schaub, Torsten},
  title = {Graphs and colorings for answer set programming},
  journal = {{TPLP}},
  volume = {6},
  number = {1-2},
  pages = {61--106},
  year = {2006}
}