@article{DE_1979_15_4_a2,
     author = {G. A. Kurina},
     title = {Application of the method of tents to an optimal control problem for a differential equation with a singular matrix multiplying the derivative},
     journal = {Differencialʹnye uravneni\^a},
     pages = {600--608},
     publisher = {mathdoc},
     volume = {15},
     number = {4},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1979_15_4_a2/}
}