%0 Journal Article %A A. G. Kolpakov %T Effective characteristics of a heat-conducting surface %J Differencialʹnye uravneniâ %D 1983 %P 706-709 %V 19 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1983_19_4_a24/ %G ru %F DE_1983_19_4_a24