@article{DBLP:journals/jancl/DelgrandeS02,
  author = {Delgrande, James P. and Schaub, Torsten},
  title = {Reasoning Credulously and skeptically within a single extension},
  journal = {Journal of Applied Non-Classical Logics},
  volume = {12},
  number = {2},
  pages = {259--285},
  year = {2002}
}