%0 Journal Article %A M. L. Gusakova %T On the necessary optimality conditions for systems of neutral type %J Differencialʹnye uravneniâ %D 1974 %P 1894-1897 %V 10 %N 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1974_10_10_a17/ %G ru %F DE_1974_10_10_a17