Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1998_34_1_a3, author = {T. B. Kopeikina}, title = {Relative observability of linear time-dependent singularly perturbed systems with delay}, journal = {Differencialʹnye uravneni\^a}, pages = {24--30}, publisher = {mathdoc}, volume = {34}, number = {1}, year = {1998}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1998_34_1_a3/} }
T. B. Kopeikina. Relative observability of linear time-dependent singularly perturbed systems with delay. Differencialʹnye uravneniâ, Tome 34 (1998) no. 1, pp. 24-30. http://geodesic.mathdoc.fr/item/DE_1998_34_1_a3/