%0 Journal Article %A A. G. Zarubin %A M. F. Tiunchik %T Some problems of mechanics with discontinuous boundary conditions and a nonsmooth boundary %J Differencialʹnye uravneniâ %D 1978 %P 1632-1637 %V 14 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1978_14_9_a11/ %G ru %F DE_1978_14_9_a11