Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1993_29_8_a9, author = {V. E. Balabaev}, title = {Investigation of boundary value problems for canonical first-order systems}, journal = {Differencialʹnye uravneni\^a}, pages = {1358--1369}, publisher = {mathdoc}, volume = {29}, number = {8}, year = {1993}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1993_29_8_a9/} }
V. E. Balabaev. Investigation of boundary value problems for canonical first-order systems. Differencialʹnye uravneniâ, Tome 29 (1993) no. 8, pp. 1358-1369. http://geodesic.mathdoc.fr/item/DE_1993_29_8_a9/