From Knowledge-Based Programs to Graded Belief-Based Programs Part I: On-Line Reasoning. - Noël Laverny; Jérôme Lang (ECAI, 2004)

From knowledge-based programs to graded belief-based programs, part II: off-line reasoning. - Noël Laverny; Jérôme Lang (IJCAI, 2005)

From Knowledge-based Programs to Graded Belief-based Programs, Part I: On-line Reasoning*. - Noël Laverny; Jérôme Lang (Synth., 2005)