Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1969_5_6_a7, author = {H. D. Hoang}, title = {Eigenvector theory and reducible $m$th order systems}, journal = {Differencialʹnye uravneni\^a}, pages = {1055--1067}, publisher = {mathdoc}, volume = {5}, number = {6}, year = {1969}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1969_5_6_a7/} }
H. D. Hoang. Eigenvector theory and reducible $m$th order systems. Differencialʹnye uravneniâ, Tome 5 (1969) no. 6, pp. 1055-1067. http://geodesic.mathdoc.fr/item/DE_1969_5_6_a7/