%0 Journal Article %A P. E. Sobolevskii %T Estimates of the Green's function of second-order partial differential equations of parabolic type %J Doklady Akademii Nauk %D 1961 %P 313-316 %V 138 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1961_138_2_a16/ %G ru %F DAN_1961_138_2_a16