%0 Journal Article %A S. M. Ermakov %A P. G. Skvortzov %T Unbiased estimators of the Neumann series by Monte-Carlo method %J Zapiski Nauchnykh Seminarov POMI %D 1974 %P 155-168 %V 43 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1974_43_a11/ %G ru %F ZNSL_1974_43_a11