@misc{DE_1972_8_12_a29,
     title = {Vladimir {Ivanovi\v{c}} {Krylov} (on his seventieth birthday)},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2281--2286},
     year = {1972},
     volume = {8},
     number = {12},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_12_a29/}
}