%0 Journal Article %A N. Ya. Beznoshchenko %T Existence of a solution of problems of determining coefficients multiplying the highest derivatives of parabolic equations %J Differencialʹnye uravneniâ %D 1982 %P 996-1000 %V 18 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1982_18_6_a7/ %G ru %F DE_1982_18_6_a7