%0 Journal Article %A G. F. Kuliev %A K. K. Gasanov %T Necessary conditions for optimality for certain systems with distributed parameters and with control in the coefficients multiplying the highest derivatives %J Differencialʹnye uravneniâ %D 1982 %P 1028-1036 %V 18 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1982_18_6_a12/ %G ru %F DE_1982_18_6_a12