Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MOMA_1990__110_3-4_178497, author = {Stefan Geiss}, title = {Some {Relations} {Between} {s-Numbers} of {Operators} on {Banach} {Spaces.}}, journal = {Monatshefte f\"ur Mathematik}, pages = {217--230}, publisher = {mathdoc}, volume = {110}, number = {3-4}, year = {1990}, zbl = {0727.47009}, url = {http://geodesic.mathdoc.fr/item/MOMA_1990__110_3-4_178497/} }
Stefan Geiss. Some Relations Between s-Numbers of Operators on Banach Spaces.. Monatshefte für Mathematik, Tome 110 (1990) no. 3-4, pp. 217-230. http://geodesic.mathdoc.fr/item/MOMA_1990__110_3-4_178497/