%0 Journal Article %A S. E. Pastukhova %T The averaging of a mixed problem with an oblique derivative for an elliptic operator in a perforated domain %J Differencialʹnye uravneniâ %D 1994 %P 1445-1456 %V 30 %N 8 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1994_30_8_a16/ %G ru %F DE_1994_30_8_a16