@article{10_4153_CJM_1972_015_3, author = {Brown, Ron}, title = {An {Approximation} {Theorem} for {Extended} {Prime} {Spots}}, journal = {Canadian journal of mathematics}, pages = {167--184}, year = {1972}, volume = {24}, number = {1}, doi = {10.4153/CJM-1972-015-3}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-015-3/} }