Fred Sommers
Existence and correspondence-to-fact
1996
in: Formal ontology, Dordrecht : Springer
The logical and the extra-logical
1974
in: Methodological and historical essays in the natural and social sciences, Dordrecht : Springer
1996
in: Formal ontology, Dordrecht : Springer
1974
in: Methodological and historical essays in the natural and social sciences, Dordrecht : Springer