@article{bwmeta1.element.bwnjournal-article-smv70i1p18bwm,
author = {Ehrhard Behrends},
title = {Operators which respect norm intervals},
journal = {Studia Mathematica},
volume = {69},
year = {1981},
pages = {203-220},
zbl = {0484.47013},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-smv70i1p18bwm}
}
Behrends, Ehrhard. Operators which respect norm intervals. Studia Mathematica, Tome 69 (1981) pp. 203-220. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-smv70i1p18bwm/