@article{10_1017_S0017089506003016,
     author = {ZHONGKUI, LIU and RENYU, ZHAO},
     title = {A {GENERALIZATION} {OF} {PP-RINGS} {AND} {p.q.-BAER} {RINGS}},
     journal = {Glasgow mathematical journal},
     pages = {217--229},
     year = {2006},
     volume = {48},
     number = {2},
     doi = {10.1017/S0017089506003016},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089506003016/}
}