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@article{DE_1970_6_8_a22, author = {R. V. Zhevnyak}, title = {On the theory of observability in {Banach} spaces}, journal = {Differencialʹnye uravneni\^a}, pages = {1516--1519}, publisher = {mathdoc}, volume = {6}, number = {8}, year = {1970}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1970_6_8_a22/} }
R. V. Zhevnyak. On the theory of observability in Banach spaces. Differencialʹnye uravneniâ, Tome 6 (1970) no. 8, pp. 1516-1519. http://geodesic.mathdoc.fr/item/DE_1970_6_8_a22/