Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1983_273_1_a0, author = {V. S. Belonosov}, title = {Instability indices of unbounded operators}, journal = {Doklady Akademii Nauk}, pages = {11--14}, publisher = {mathdoc}, volume = {273}, number = {1}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1983_273_1_a0/} }
V. S. Belonosov. Instability indices of unbounded operators. Doklady Akademii Nauk, Tome 273 (1983) no. 1, pp. 11-14. http://geodesic.mathdoc.fr/item/DAN_1983_273_1_a0/