@article{GDZPPN002416565,
title = {The Spectral Radius Formula in Quotient Algebras.},
journal = {Mathematische Zeitschrift},
volume = {142},
year = {1975},
pages = {157-162},
zbl = {0299.46046},
url = {http://dml.mathdoc.fr/item/GDZPPN002416565}
}
Smyth, M.R.F.; West, T.T. The Spectral Radius Formula in Quotient Algebras.. Mathematische Zeitschrift, Tome 142 (1975) pp. 157-162. http://gdmltest.u-ga.fr/item/GDZPPN002416565/