@article{bwmeta1.element.bwnjournal-article-aav33i4p405bwm,
author = {Ferrero, Bruce},
title = {An explicit bound for Iwasawa's $\lambda$-invariant},
journal = {Acta Arithmetica},
volume = {32},
year = {1977},
pages = {405-408},
zbl = {0323.12004},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-aav33i4p405bwm}
}
Ferrero, Bruce. An explicit bound for Iwasawa's λ-invariant. Acta Arithmetica, Tome 32 (1977) pp. 405-408. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-aav33i4p405bwm/