@article{10_4153_CMB_1972_083_5, author = {Tzimbalario, Jean}, title = {On a {Question} {Posed} by {D.} {Leviatan} and {L.} {Lorch}}, journal = {Canadian mathematical bulletin}, pages = {453--453}, year = {1972}, volume = {15}, number = {3}, doi = {10.4153/CMB-1972-083-5}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1972-083-5/} }