%0 Journal Article %A N. M. Krukovskii %T Uniqueness and membership in the class $W_2^1$ of the classical solution of a mixed problem for hyperbolic systems of A.\,V.~Bicadze type in an arbitrary cylinder %J Differencialʹnye uravneniâ %D 1977 %P 481-488 %V 13 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1977_13_3_a11/ %G ru %F DE_1977_13_3_a11