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@article{AL_1985_24_2_a3, author = {D. P. Skvortsov}, title = {A superintuitionistic propositional calculus}, journal = {Algebra i logika}, pages = {195--204}, publisher = {mathdoc}, volume = {24}, number = {2}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/AL_1985_24_2_a3/} }
D. P. Skvortsov. A superintuitionistic propositional calculus. Algebra i logika, Tome 24 (1985) no. 2, pp. 195-204. http://geodesic.mathdoc.fr/item/AL_1985_24_2_a3/