@article{1250519723,
author = {Katayama, Shin-ichi},
title = {Isogenous tori and the class number formulae},
journal = {J. Math. Kyoto Univ.},
volume = {31},
number = {4},
year = {1991},
pages = { 679-694},
language = {en},
url = {http://dml.mathdoc.fr/item/1250519723}
}
Katayama, Shin-ichi. Isogenous tori and the class number formulae. J. Math. Kyoto Univ., Tome 31 (1991) no. 4, pp. 679-694. http://gdmltest.u-ga.fr/item/1250519723/