@article{DAN_1964_159_1_a2,
     author = {S. Yu. Maslov},
     title = {An inverse method of establishing deducibility in the classical predicate calculus},
     journal = {Doklady Akademii Nauk},
     pages = {17--20},
     publisher = {mathdoc},
     volume = {159},
     number = {1},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_159_1_a2/}
}