@article{KonczakLinkeSchaub2003,
  author    = {Konczak, Kathrin and Linke, Thomas and Schaub, Torsten},
  title     = {Graphs and colorings for answer set programming : abridged report},
  issn      = {1613-0073},
  year      = {2003},
  language  = {en}
}
@article{KonczakLinkeSchaub2006,
  author    = {Konczak, Kathrin and Linke, Thomas and Schaub, Torsten},
  title     = {Graphs and colorings for answer set programming},
  issn      = {1471-0684},
  doi       = {10.1017/S1471068405002528},
  year      = {2006},
  abstract  = {We investigate the usage of rule dependency graphs and their colorings for characterizing and computing answer sets of logic programs. This approach provides us with insights into the interplay between rules when inducing answer sets. We start with different characterizations of answer sets in terms of totally colored dependency graphs that differ ill graph-theoretical aspects. We then develop a series of operational characterizations of answer sets in terms of operators on partial colorings. In analogy to the notion of a derivation in proof theory, our operational characterizations are expressed as (non-deterministically formed) sequences of colorings, turning an uncolored graph into a totally colored one. In this way, we obtain an operational framework in which different combinations of operators result in different formal properties. Among others, we identify the basic strategy employed by the noMoRe system and justify its algorithmic approach. Furthermore, we distinguish operations corresponding to Fitting's operator as well as to well-founded semantics},
  language  = {en}
}
@article{KonczakLinkeSchaub2004,
  author    = {Konczak, Kathrin and Linke, Thomas and Schaub, Torsten},
  title     = {Graphs and cologings for answer set programming : adridged report},
  isbn      = {3-540- 20721-x},
  year      = {2004},
  language  = {en}
}
@article{Linke2001,
  author    = {Linke, Thomas},
  title     = {Graph theoretical characterization and computation of answer sets},
  isbn      = {1-558-60777-3},
  issn      = {1045-0823},
  year      = {2001},
  language  = {en}
}
@article{Linke2001,
  author    = {Linke, Thomas},
  title     = {Graph theoretical characterization and computation of answer sets},
  year      = {2001},
  language  = {en}
}
@article{LinkeSchaub1998,
  author    = {Linke, Thomas and Schaub, Torsten},
  title     = {An approach to query-answering in Reiter's default logic and the underlying existence of extensions problem.},
  isbn      = {3-540-65141-1},
  year      = {1998},
  language  = {en}
}
@article{LinkeSchaub2000,
  author    = {Linke, Thomas and Schaub, Torsten},
  title     = {Alternative foundations for Reiter's default logic.},
  issn      = {0004-3702},
  year      = {2000},
  language  = {en}
}
@article{AngerKonczakLinke2001,
  author    = {Anger, Christian and Konczak, Kathrin and Linke, Thomas},
  title     = {A system for non-monotonic reasoning under answer set semantics},
  isbn      = {3-540-42593-4},
  year      = {2001},
  language  = {en}
}
@article{AngerKonczakLinkeetal.2005,
  author    = {Anger, Christian and Konczak, Kathrin and Linke, Thomas and Schaub, Torsten},
  title     = {A Glimpse of Answer Set Programming},
  issn      = {0170-4516},
  year      = {2005},
  language  = {en}
}