%0 Journal Article %T Vladimir Ivanovi{\v{c}} Krylov (on his seventieth birthday) %J Differencialʹnye uravneniâ %D 1972 %P 2281-2286 %V 8 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1972_8_12_a29/ %G ru %F DE_1972_8_12_a29