@article{10_4153_CJM_1976_011_6,
     author = {Jacobson, David},
     title = {Finite {Rings} in {Which} 1 is a {Sum} of {Two} {Non-P-Th} {Power} {Units}},
     journal = {Canadian journal of mathematics},
     pages = {94--103},
     year = {1976},
     volume = {28},
     number = {1},
     doi = {10.4153/CJM-1976-011-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1976-011-6/}
}