Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1986_22_2_a0, author = {B. S. Kalitin}, title = {Pseudostability of closed invariant sets}, journal = {Differencialʹnye uravneni\^a}, pages = {187--193}, publisher = {mathdoc}, volume = {22}, number = {2}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1986_22_2_a0/} }
B. S. Kalitin. Pseudostability of closed invariant sets. Differencialʹnye uravneniâ, Tome 22 (1986) no. 2, pp. 187-193. http://geodesic.mathdoc.fr/item/DE_1986_22_2_a0/