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@article{DAN_1965_165_5_a3, author = {M. I. Kratko}, title = {On a certain class of {Post} calculi}, journal = {Doklady Akademii Nauk}, pages = {994--995}, publisher = {mathdoc}, volume = {165}, number = {5}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1965_165_5_a3/} }
M. I. Kratko. On a certain class of Post calculi. Doklady Akademii Nauk, Tome 165 (1965) no. 5, pp. 994-995. http://geodesic.mathdoc.fr/item/DAN_1965_165_5_a3/