@article{DAN_1976_227_6_a3,
     author = {L. A. Levin},
     title = {On the principle of conservation of information in intuitionistic mathematics},
     journal = {Doklady Akademii Nauk},
     pages = {1293--1296},
     publisher = {mathdoc},
     volume = {227},
     number = {6},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_227_6_a3/}
}