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@article{AMLG_1987__26_138055, author = {Miroslaw Szatkowski}, title = {Model existence theorem in superrelevant predicate logics.}, journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung}, pages = {111--122}, publisher = {mathdoc}, volume = {26}, year = {1987}, zbl = {0641.03015}, url = {http://geodesic.mathdoc.fr/item/AMLG_1987__26_138055/} }
Miroslaw Szatkowski. Model existence theorem in superrelevant predicate logics.. Archiv für mathematische Logik und Grundlagenforschung, Tome 26 (1987), pp. 111-122. http://geodesic.mathdoc.fr/item/AMLG_1987__26_138055/