@article{1077376682, author = {V\"ais\"al\"a, Jussi}, title = {The invariance of domain under acyclic mappings}, journal = {Duke Math. J.}, volume = {33}, number = {1}, year = {1966}, pages = { 679-681}, language = {en}, url = {http://dml.mathdoc.fr/item/1077376682} }
Väisälä, Jussi. The invariance of domain under acyclic mappings. Duke Math. J., Tome 33 (1966) no. 1, pp. 679-681. http://gdmltest.u-ga.fr/item/1077376682/