%0 Journal Article %A O. M. Penkin %T On the maximum principle for an elliptic equation on stratified sets %J Differencialʹnye uravneniâ %D 1998 %P 1433-1434 %V 34 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1998_34_10_a20/ %G ru %F DE_1998_34_10_a20