@article{PORMA_1981__40_3_115458,
     author = {Putcha, Mohan S. and Yaqub, Adil},
     title = {Rings satisfying a certain idempotency condition},
     journal = {Portugaliae mathematica},
     pages = {325--328},
     publisher = {mathdoc},
     volume = {40},
     number = {3},
     year = {1981},
     mrnumber = {0819898},
     zbl = {0559.16008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1981__40_3_115458/}
}