@article{GDZPPN002487373,
title = {Some Relations Between s-Numbers of Operators on Banach Spaces.},
journal = {Monatshefte f\"ur Mathematik},
volume = {109},
year = {1990},
pages = {217-230},
zbl = {0727.47009},
url = {http://dml.mathdoc.fr/item/GDZPPN002487373}
}
Geiss, Stefan. Some Relations Between s-Numbers of Operators on Banach Spaces.. Monatshefte für Mathematik, Tome 109 (1990) pp. 217-230. http://gdmltest.u-ga.fr/item/GDZPPN002487373/