@article{GDZPPN002414813,
title = {The Schur Subgroup of a Real Cyclotomic Field.},
journal = {Mathematische Zeitschrift},
volume = {136},
year = {1974},
pages = {35-44},
zbl = {0278.12002},
url = {http://dml.mathdoc.fr/item/GDZPPN002414813}
}
Yamada, Toshihiko. The Schur Subgroup of a Real Cyclotomic Field.. Mathematische Zeitschrift, Tome 136 (1974) pp. 35-44. http://gdmltest.u-ga.fr/item/GDZPPN002414813/