@article{DAN_1960_130_1_a7,
     author = {Yu. N. Cheremnykh},
     title = {A theorem in the qualitative theory of parabolic equations},
     journal = {Doklady Akademii Nauk},
     pages = {33--36},
     year = {1960},
     volume = {130},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_130_1_a7/}
}