@article{RCM_2012_46_1_a5,
     author = {Ibeth Marcela Rubio and Lorenzo Acosta},
     title = {On {Spectral} {Compactness} of {Von} {Neumann} {Regular} {Rings}},
     journal = {Revista colombiana de matematicas},
     pages = {81--95},
     year = {2012},
     volume = {46},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/RCM_2012_46_1_a5/}
}