@article{DE_1979_15_11_a1,
     author = {T. R. Gichev and N. Kh. Rozov},
     title = {The nonlinear controlled sampled-data system. {I.~Effect} of certain perturbations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1933--1939},
     publisher = {mathdoc},
     volume = {15},
     number = {11},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1979_15_11_a1/}
}