Jaspers, Dany, and Pieter A. M. Seuren. 2016. “The Square of Opposition in Catholic Hands: A Chapter in the History of 20th-Century Logic.” Logique et Analyse 59 (233): 1–35. (12 diagrams)
Seuren, Pieter A. M. 2014. “Universe Restriction in the Logic of Language.” In Black Book: A Festschrift in Honor of Frans Zwarts, edited by Jack Hoeksema and Dicky Gilbers, 282–300. Groningen: Rijksuniversiteit Groningen. (0 diagrams)
Seuren, Pieter A. M. 2012. “Does a Leaking O-Corner Save the Square?” In Around and Beyond the Square of Opposition, edited by Jean-Yves Beziau and Dale Jacquette, 129–138. Basel: Springer. (3 diagrams)
Seuren, Pieter A. M. 2012. “From Logical Intuitions to Natural Logic.” In The Square of Opposition. A General Framework for Cognition, edited by Jean-Yves Beziau and Gillman Payette, 231–287. Bern: Peter Lang. (0 diagrams)
Seuren, Pieter A. M. 2006. “Propositional and Predicate Logic: Linguistic Aspects.” In Encyclopedia of Language & Linguistics. Volume 10, edited by Keith Brown, 2nd ed., 146–153. Amsterdam: Elsevier. (0 diagrams)