@article{1250129108,
author = {Leonard, Philip A. and Williams, Kenneth S.},
title = {The quadratic and quartic character of certain quadratic units. II},
journal = {Rocky Mountain J. Math.},
volume = {9},
number = {4},
year = {1979},
pages = { 683-692},
language = {en},
url = {http://dml.mathdoc.fr/item/1250129108}
}
Leonard, Philip A.; Williams, Kenneth S. The quadratic and quartic character of certain quadratic units. II. Rocky Mountain J. Math., Tome 9 (1979) no. 4, pp. 683-692. http://gdmltest.u-ga.fr/item/1250129108/