@article{10_4064_cm122_2_4,
     author = {Alberto Facchini and Catia Parolin},
     title = {Rings whose proper factors are right perfect},
     journal = {Colloquium Mathematicum},
     pages = {191--202},
     publisher = {mathdoc},
     volume = {122},
     number = {2},
     year = {2011},
     doi = {10.4064/cm122-2-4},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm122-2-4/}
}