%0 Journal Article %A G. A. Kurina %T Application of the method of tents to an optimal control problem for a differential equation with a singular matrix multiplying the derivative %J Differencialʹnye uravneniâ %D 1979 %P 600-608 %V 15 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1979_15_4_a2/ %G ru %F DE_1979_15_4_a2