@article{04132304,
title = {Exchange PF-rings and almost PP-rings.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {12},
year = {1989},
pages = {725-727},
doi = {10.1155/S016117128900089X},
zbl = {0692.13007},
language = {en},
url = {http://dml.mathdoc.fr/item/04132304}
}
Al-Ezeh, H. Exchange PF-rings and almost PP-rings.. International Journal of Mathematics and Mathematical Sciences, Tome 12 (1989) pp. 725-727. doi : 10.1155/S016117128900089X. http://gdmltest.u-ga.fr/item/04132304/