@article{DAN_1964_158_2_a8,
     author = {M. I. Freidlin},
     title = {A priori bounds for solutions of degenerate elliptic equations},
     journal = {Doklady Akademii Nauk},
     pages = {281--283},
     publisher = {mathdoc},
     volume = {158},
     number = {2},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_158_2_a8/}
}