@article{1028989006, author = {Church, P. T.}, title = {Ambiguous points of a function homeomorphic inside a sphere.}, journal = {Michigan Math. J.}, volume = {4}, number = {2}, year = {1957}, pages = { 155-156}, language = {en}, url = {http://dml.mathdoc.fr/item/1028989006} }
Church, P. T. Ambiguous points of a function homeomorphic inside a sphere.. Michigan Math. J., Tome 4 (1957) no. 2, pp. 155-156. http://gdmltest.u-ga.fr/item/1028989006/