@article{10_4153_CMB_1994_015_5,
     author = {Parmenter, M. M.},
     title = {Finite {Coverings} of {Rings} by {Ideals}},
     journal = {Canadian mathematical bulletin},
     pages = {97--99},
     year = {1994},
     volume = {37},
     number = {1},
     doi = {10.4153/CMB-1994-015-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1994-015-5/}
}