@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/