@article{SE_1960-1962__3__A4_0, author = {Ehresmann, Charles}, title = {Esp\`eces de structures locales}, journal = {S\'eminaire de topologie et g\'eom\'etrie diff\'erentielle}, note = {talk:4}, pages = {1--24}, publisher = {Secr\'etariat math\'ematique}, volume = {3}, year = {1960-1962}, zbl = {0106.36302}, language = {fr}, url = {http://www.numdam.org/item/SE_1960-1962__3__A4_0/} }