@article{GDZPPN002354039,
title = {Commutative subrings of periodic rings.},
journal = {Mathematica Scandinavica},
volume = {38},
year = {1976},
pages = {161-166},
zbl = {0344.16023},
url = {http://dml.mathdoc.fr/item/GDZPPN002354039}
}
Laffey, Thomas J. Commutative subrings of periodic rings.. Mathematica Scandinavica, Tome 38 (1976) pp. 161-166. http://gdmltest.u-ga.fr/item/GDZPPN002354039/