%0 Journal Article %A I. A. Ibragimov %A R. Z. Khas'minskii %T Estimation problems for coefficients of stochastic partial differential equations. Part~I %J Teoriâ veroâtnostej i ee primeneniâ %D 1998 %P 417-438 %V 43 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_1998_43_3_a0/ %G ru %F TVP_1998_43_3_a0