@article{BesnardSchaub1995,
  author    = {Besnard, Philippe and Schaub, Torsten H.},
  title     = {An approach to context-based default reasoning},
  issn      = {0169-2968},
  year      = {1995},
  language  = {en}
}
@article{ThielscherSchaub1995,
  author    = {Thielscher, Michael and Schaub, Torsten H.},
  title     = {Default reasoning by deductive planning},
  year      = {1995},
  language  = {en}
}
@article{BesnardSchaub1993,
  author    = {Besnard, Philippe and Schaub, Torsten H.},
  title     = {A context-based framework for default logics},
  isbn      = {0-262-51071-5},
  year      = {1993},
  language  = {en}
}