TY - JOUR AU - N. K. Vereshchagin AU - D. P. Skvortsov AU - E. Z. Skvortsova AU - A. V. Chernov TI - Variants of Realizability for Propositional Formulas and the Logic of Weak Excluded Middle JO - Informatics and Automation PY - 2003 SP - 77 EP - 97 VL - 242 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TRSPY_2003_242_a5/ LA - ru ID - TRSPY_2003_242_a5 ER -