Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1971_201_6_a5, author = {V. A. Trenogin}, title = {Approximations on families of {Banach} spaces and solvability of linear equations}, journal = {Doklady Akademii Nauk}, pages = {1288--1291}, publisher = {mathdoc}, volume = {201}, number = {6}, year = {1971}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1971_201_6_a5/} }
V. A. Trenogin. Approximations on families of Banach spaces and solvability of linear equations. Doklady Akademii Nauk, Tome 201 (1971) no. 6, pp. 1288-1291. http://geodesic.mathdoc.fr/item/DAN_1971_201_6_a5/