@article{1178241335, author = {Uchida, K\^oji}, title = {Relative class numbers of normal ${\rm CM}$-fields}, journal = {Tohoku Math. J. (2)}, volume = {25}, number = {4}, year = {1973}, pages = { 347-353}, language = {en}, url = {http://dml.mathdoc.fr/item/1178241335} }
Uchida, Kôji. Relative class numbers of normal ${\rm CM}$-fields. Tohoku Math. J. (2), Tome 25 (1973) no. 4, pp. 347-353. http://gdmltest.u-ga.fr/item/1178241335/