@article{01538444,
title = {Rings with many idempotents.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {22},
year = {1999},
pages = {547-558},
doi = {10.1155/S0161171299225471},
zbl = {0970.16004},
language = {en},
url = {http://dml.mathdoc.fr/item/01538444}
}
Chen, Huanyin. Rings with many idempotents.. International Journal of Mathematics and Mathematical Sciences, Tome 22 (1999) pp. 547-558. doi : 10.1155/S0161171299225471. http://gdmltest.u-ga.fr/item/01538444/