@article{1102976839,
author = {Stampfli, Joseph G.},
title = {The norm of a derivation.},
journal = {Pacific J. Math.},
volume = {35},
number = {3},
year = {1970},
pages = { 737-747},
language = {en},
url = {http://dml.mathdoc.fr/item/1102976839}
}
Stampfli, Joseph G. The norm of a derivation.. Pacific J. Math., Tome 35 (1970) no. 3, pp. 737-747. http://gdmltest.u-ga.fr/item/1102976839/