@article{1200770454,
author = {Yao, Takashi},
title = {On $\pi $-solvable groups whose character degrees are $\pi $-numbers},
journal = {Osaka J. Math.},
volume = {14},
number = {1},
year = {1977},
pages = { 437-452},
language = {en},
url = {http://dml.mathdoc.fr/item/1200770454}
}
Yao, Takashi. On $\pi $-solvable groups whose character degrees are $\pi $-numbers. Osaka J. Math., Tome 14 (1977) no. 1, pp. 437-452. http://gdmltest.u-ga.fr/item/1200770454/