@article{GDZPPN00228846X,
title = {On Rings in which an (a) = a.},
journal = {Mathematische Annalen},
volume = {141},
year = {1960},
pages = {324-333},
zbl = {0091.03303},
url = {http://dml.mathdoc.fr/item/GDZPPN00228846X}
}
FOSTER, A.L.; SUSSMAN, I. On Rings in which an (a) = a.. Mathematische Annalen, Tome 141 (1960) pp. 324-333. http://gdmltest.u-ga.fr/item/GDZPPN00228846X/