Publications
“Some Contributions To The Logic Of Action”. Communication and Cognition 9: 347–376.
. 1976. “In-World Realism Vs. Reflective Realism.” . Realism in the Sciences: 35–53.
. 1996. 
“A Universally Abnormality-Adaptive Logic”. Logical Investigations 8: 256–265.
. 2001. 

“It Might Have Been Classical Logic”. Logique et Analyse 55: 241–279.
. 2012. 
“Some Proposals For The Solution Of The Carnap-Popper Discussion On `inductive Logic'”. Studia Philosophica Gandensia 6: 5–25.
. 1968. “A Formal Approach To Problem Solving” . Computer Modeling of Scientific Reasoning: 15–26.
. 2003. 
“On Classical Adaptive Logics Of Induction”. Logique et Analyse 44: 255–290.
. 2001. 
“The Structure Of Our Knowledge System” . Communication and Cognition. Applied Epistemology: 101.
. 1987. “Some Remarks On The Relations Between Science And Values”. Philosophica 17: 13–46.
. 1976. “Een Pleidooi Voor Lokale Consistentie” Congresbundel Filosofiedag Antwerpen 1988: 41–46.
. 1989. . 1986.
“The Need For Adaptive Logics In Epistemology” . Logic, Epistemology, and the Unity of Science: 459–485.
. 2004. 
“Some Adaptive Logics For Diagnosis”. Logic and Logical Philosophy 11/12: 39–65.
. 2003. 
“Functioning And Teachings Of Adaptive Logics” . Logic and Argumentation: 241–254.
. 1996. 
“Blocks. The Clue To Dynamic Aspects Of Logic”. Logique et Analyse 38: 285–328.
. 1995. 
“De Rol Van Ontische Factoren In De Kennisverzameling”. Communication and Cognition 6: 51–69.
. 1973. “A Survey Of Inconsistency-Adaptive Logics” . Frontiers of Paraconsistent Logic: 49–73.
. 2000. 
“Minimally Abnormal Models In Some Adaptive Logics”. Synthese 125: 5–18.
. 2000. 
“Progress, Rationality And The Philosophy Of Science”. Tijdschrift voor de studie van de Verlichting en het Vrije denken 8–9: 83–102.
. 1981. Leo Apostel. Tien Filosofen Getuigen. Antwerpen/Baarn: Hadewijch.
. 1996. Leo Apostel. Tien filosofen getuigen 
“Adaptive Cn Logics” . The Many Sides of Logic: 27–45.
. 2009. 

“Direct Dynamic Proofs For The Rescher–Manor Consequence Relations: The Flat Case”. Journal of Applied Non-Classical Logics 12: 63–84.
. 2002. 
“Meaning, Acceptance, And Dialectics” . Change and Progress in Modern Science: 333–360.
. 1985. “Against Global Paraconsistency”. Studies in Soviet Thought 39: 209–229.
. 1990.