@article{DAN_1981_257_6_a2,
     author = {A. B. Vasil'eva and M. V. Faminskaya},
     title = {An investigation of a nonlinear optimal control problem by the methods of singular perturbation theory},
     journal = {Doklady Akademii Nauk},
     pages = {1295--1298},
     year = {1981},
     volume = {257},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1981_257_6_a2/}
}