%0 Journal Article %A N. È. Yangalova %T Unessential sets in the Cauchy problem for second-order parabolic equations %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1990 %P 83-87 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1990_3_a17/ %G ru %F VMUMM_1990_3_a17