@article{CTGDC_1981__22_1_19_0, author = {Coste, Michel and Coste-Roy, Marie-Fran\c{c}oise}, title = {Le topos \'etale r\'eel d'un anneau}, journal = {Cahiers de topologie et g\'eom\'etrie diff\'erentielle}, pages = {19--24}, publisher = {Dunod \'editeur, publi\'e avec le concours du CNRS}, volume = {22}, number = {1}, year = {1981}, mrnumber = {609155}, zbl = {0454.18008}, language = {fr}, url = {http://archive.numdam.org/item/CTGDC_1981__22_1_19_0/} }