@article{DAN_1970_192_2_a4,
     author = {F. A. Kabakov},
     title = {The intuitionistic deducibility of certain realizable formulae of propositional logic},
     journal = {Doklady Akademii Nauk},
     pages = {269--271},
     publisher = {mathdoc},
     volume = {192},
     number = {2},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_192_2_a4/}
}