@article{DAN_1979_245_5_a6,
     author = {L. L. Maksimova and D. P. Skvortsov and V. B. Shehtman},
     title = {Impossibility of finite axiomatization of {Medvedev's} logic of finite problems},
     journal = {Doklady Akademii Nauk},
     pages = {1051--1054},
     publisher = {mathdoc},
     volume = {245},
     number = {5},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_245_5_a6/}
}