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@article{DE_1969_5_6_a8, author = {S. V. Churakova}, title = {The relative controllability of linear systems with variable and distributed retardation}, journal = {Differencialʹnye uravneni\^a}, pages = {1068--1075}, publisher = {mathdoc}, volume = {5}, number = {6}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1969_5_6_a8/} }
S. V. Churakova. The relative controllability of linear systems with variable and distributed retardation. Differencialʹnye uravneniâ, Tome 5 (1969) no. 6, pp. 1068-1075. http://geodesic.mathdoc.fr/item/DE_1969_5_6_a8/