@article{DE_1966_2_3_a2,
     author = {E. M. Markushin and S. N. Shimanov},
     title = {On convergence of the optimal control of a countable system of differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {314--323},
     publisher = {mathdoc},
     volume = {2},
     number = {3},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1966_2_3_a2/}
}