@article{1102912220,
author = {Leonard, Philip A. and Williams, Kenneth S.},
title = {The septic character of $2$, $3$, $5$ and $7$.},
journal = {Pacific J. Math.},
volume = {55},
number = {2},
year = {1974},
pages = { 143-147},
language = {en},
url = {http://dml.mathdoc.fr/item/1102912220}
}
Leonard, Philip A.; Williams, Kenneth S. The septic character of $2$, $3$, $5$ and $7$.. Pacific J. Math., Tome 55 (1974) no. 2, pp. 143-147. http://gdmltest.u-ga.fr/item/1102912220/