Reihe Trends in LogicJanusz Czelakowski × Freedom and Enforcement in ActionA Study in Formal Action TheoryJanusz CzelakowskiSpringer NetherlandSoftcover2016 Freedom and Enforcement in ActionA Study in Formal Action TheoryJanusz CzelakowskiSpringer NetherlandHardcover2015 Freedom and Enforcement in ActionA Study in Formal Action TheoryJanusz CzelakowskiSpringer NetherlandeBook2015 Protoalgebraic Logics Janusz CzelakowskiSpringer NetherlandeBook2013 Protoalgebraic Logics Janusz CzelakowskiSpringer NetherlandSoftcover2010 Protoalgebraic Logics Janusz CzelakowskiSpringer NetherlandHardcover2001