@article{10_4153_CJM_1966_098_3, author = {Kestelman, H.}, title = {Self-Centred {Sets}}, journal = {Canadian journal of mathematics}, pages = {974--980}, year = {1966}, volume = {18}, number = {1}, doi = {10.4153/CJM-1966-098-3}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-098-3/} }