@article{10_1017_S0017089500002561,
     author = {Colville, Peter D.},
     title = {Characterizing f-rings},
     journal = {Glasgow mathematical journal},
     pages = {88--90},
     year = {1975},
     volume = {16},
     number = {2},
     doi = {10.1017/S0017089500002561},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500002561/}
}