Schroeder-Heister, Peter(2012); Article; Jean-Yves Béziau and Gillman Payette (eds.), The Square of Opposition: A General Framework for Cognition. Bern: Peter Lang 2012, pp. 323-349
Piecha, Thomas; Schroeder-Heister, Peter(2017); Article; Pavel Arazim & Tomáš Lávička (eds.), The Logica Yearbook 2016. London: College Publications 2017, pp. 185-200