Jerzy Perzanowski
The way of truth
1996
in: Formal ontology, Dordrecht : Springer
What is non-fregean in the semantics of Wittgenstein'stractatus and why?
1993
Axiomathes 4/3
Towards post-tractatus ontology
1990
in: Wittgenstein — eine neubewertung/Wittgenstein — towards a re-evaluation, Dordrecht : Springer