%0 Journal Article %A T. Tobias %T Optimal stopping of diffusion processes, and parabolic variational inequalities %J Differencialʹnye uravneniâ %D 1973 %P 702-708 %V 9 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1973_9_4_a13/ %G ru %F DE_1973_9_4_a13