Deductive Inference Operations. - Michael Freund 002; Daniel Lehmann 001 (JELIA, 1990)

A semantic charcterization of disjunctive relations. - Michael Freund 002 (FAIR, 1991)

Rationality, Transitivity, and Contraposition. - Michael Freund 002; Daniel Lehmann 001; Paul Morris (Artif. Intell., 1992)

Nonmonotonic inference operations. - Michael Freund 002; Daniel Lehmann 001 (Log. J. IGPL, 1993)

Injective Models and Disjunctive Relations. - Michael Freund 002 (J. Log. Comput., 1993)

Supracompact inference operations. - Michael Freund 002 (Stud Logica, 1993)

The W systems: between maximum entropy and minimal ranking. - Michael Freund 002 (J. Appl. Non Class. Logics, 1994)

Nonmonotonic reasoning: from finitary relations to infinitary inference operations. - Michael Freund 002; Daniel Lehmann 001 (Stud Logica, 1994)

On Negation Rationality. - Michael Freund 002; Daniel Lehmann 001 (J. Log. Comput., 1996)

Default Extensions: Dealing with Computer Information. - Michael Freund 002 (Artif. Intell., 1997)

Preferential Reasoning in the Perspective of Poole Default Logic. - Michael Freund 002 (Artif. Intell., 1998)

Preferential Orders and Plausibility Measures. - Michael Freund 002 (J. Log. Comput., 1998)

Statics and Dynamics of Induced Systems. - Michael Freund 002 (Artif. Intell., 1999)

Belief Revision and Rational Inference - Michael Freund 002; Daniel Lehmann 001 (CoRR, 2002)

Typicality, Contextual Inferences and Object Determination Logic. - Michael Freund 002; Jean-Pierre Desclés; Anca Pascu; Jérôme Cardot (FLAIRS, 2004)

On the revision of preferences and rational inference processes. - Michael Freund 002 (Artif. Intell., 2004)

On the notion of concept I. - Michael Freund 002 (Artif. Intell., 2008)

On the notion of concept II. - Michael Freund 002 (Artif. Intell., 2009)

Ordered models for concept representation. - Michael Freund 002 (J. Log. Comput., 2020)