@article{PM_1996_1996_1_a7,
     author = {Xue, Weimin},
     title = {Caracterizaciones de anillos semiperfectos y perfectos.},
     journal = {Publicacions matem\`atiques},
     pages = {115-125},
     publisher = {mathdoc},
     volume = {40},
     number = {1},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PM_1996_1996_1_a7/}
}