Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1992_323_6_a0, author = {V. D. Budaev}, title = {The unconditional basis property of systems of root vector}, journal = {Doklady Akademii Nauk}, pages = {999--1003}, publisher = {mathdoc}, volume = {323}, number = {6}, year = {1992}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1992_323_6_a0/} }
V. D. Budaev. The unconditional basis property of systems of root vector. Doklady Akademii Nauk, Tome 323 (1992) no. 6, pp. 999-1003. http://geodesic.mathdoc.fr/item/DAN_1992_323_6_a0/