@article{DelgrandeLangSchaub2007,
  author    = {Delgrande, James Patrick and Lang, J{\´e}r{\^o}me and Schaub, Torsten H.},
  title     = {Belief change based on global minimisation},
  year      = {2007},
  language  = {en}
}
@article{KonczakLang2005,
  author    = {Konczak, Kathrin and Lang, Jerome},
  title     = {Voting procedures with incomplete preferences},
  year      = {2005},
  language  = {en}
}
@article{BesnardLang2000,
  author    = {Besnard, Philippe and Lang, Jerome},
  title     = {Graded paraconsistency},
  isbn      = {0-86380-253-2},
  year      = {2000},
  language  = {en}
}