@article{10_4153_CJM_1975_026_3,
     author = {Peterson, Roger D.},
     title = {One-Sided {Inverses} in {Rings}},
     journal = {Canadian journal of mathematics},
     pages = {218--224},
     year = {1975},
     volume = {27},
     number = {1},
     doi = {10.4153/CJM-1975-026-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1975-026-3/}
}