@article{GDZPPN00240074X, title = {A New "Cyclic" element Theory.}, journal = {Mathematische Zeitschrift}, volume = {99}, year = {1967}, pages = {152-164}, zbl = {0173.25401}, url = {http://dml.mathdoc.fr/item/GDZPPN00240074X} }
McAllister, B.L.; McAuley, L.F. A New "Cyclic" element Theory.. Mathematische Zeitschrift, Tome 99 (1967) pp. 152-164. http://gdmltest.u-ga.fr/item/GDZPPN00240074X/