@article{RCM_2015_49_1_a7,
     author = {Jorge I. Guier},
     title = {Convex {Lattice-Ordered} {Subrings} of von {Neumann} {Regular} {f-Rings}},
     journal = {Revista colombiana de matematicas},
     pages = {161--170},
     publisher = {mathdoc},
     volume = {49},
     number = {1},
     year = {2015},
     url = {http://geodesic.mathdoc.fr/item/RCM_2015_49_1_a7/}
}