%0 Journal Article %A N. I. Brisch %T Classical solution of mixed problems for nonstationary equations %J Differencialʹnye uravneniâ %D 1965 %P 523-528 %V 1 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1965_1_4_a9/ %G ru %F DE_1965_1_4_a9