%0 Journal Article %A F. Klebaner %A R. Liptser %T When a stochastic exponential is a true martingale. Extension of the Bene\v{s} method %J Teoriâ veroâtnostej i ee primeneniâ %D 2013 %P 53-80 %V 58 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_2013_58_1_a4/ %G ru %F TVP_2013_58_1_a4