%0 Journal Article %A A. A. Markov %T On the completeness of the classical predicate calculus in constructive mathematical logic %J Doklady Akademii Nauk %D 1974 %P 266-269 %V 215 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1974_215_2_a5/ %G ru %F DAN_1974_215_2_a5