@article{DE_1991_27_10_a3,
     author = {N. G. Dokuchaev},
     title = {Integral estimates for ordinary differential equations and their application to nonsmooth problems of optimal control},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1679--1691},
     publisher = {mathdoc},
     volume = {27},
     number = {10},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1991_27_10_a3/}
}