@article{1183738861,
author = {Fitting, Melvin},
title = {Model Existence Theorems for Modal and Intuitionistic Logics},
journal = {J. Symbolic Logic},
volume = {38},
number = {1},
year = {1973},
pages = { 613-627},
language = {en},
url = {http://dml.mathdoc.fr/item/1183738861}
}
Fitting, Melvin. Model Existence Theorems for Modal and Intuitionistic Logics. J. Symbolic Logic, Tome 38 (1973) no. 1, pp. 613-627. http://gdmltest.u-ga.fr/item/1183738861/