@article{10_21136_CMJ_1979_101577,
     author = {Szeto, George},
     title = {p.p. rings and reduced rings},
     journal = {Czechoslovak Mathematical Journal},
     pages = {53--56},
     publisher = {mathdoc},
     volume = {29},
     number = {1},
     year = {1979},
     doi = {10.21136/CMJ.1979.101577},
     mrnumber = {518139},
     zbl = {0433.16014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1979.101577/}
}