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@article{DE_1973_9_3_a3, author = {A. M. Zverkin}, title = {The point-wise completeness of systems with lag}, journal = {Differencialʹnye uravneni\^a}, pages = {430--436}, publisher = {mathdoc}, volume = {9}, number = {3}, year = {1973}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1973_9_3_a3/} }
A. M. Zverkin. The point-wise completeness of systems with lag. Differencialʹnye uravneniâ, Tome 9 (1973) no. 3, pp. 430-436. http://geodesic.mathdoc.fr/item/DE_1973_9_3_a3/