@article{GDZPPN002202204,
title = {On an Archimedian characterization of the circular units.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {358},
year = {1985},
pages = {161-173},
zbl = {0548.12003},
url = {http://dml.mathdoc.fr/item/GDZPPN002202204}
}
Coleman, Robert F. On an Archimedian characterization of the circular units.. Journal für die reine und angewandte Mathematik, Tome 358 (1985) pp. 161-173. http://gdmltest.u-ga.fr/item/GDZPPN002202204/