Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{ELMA_1962__17_140746, author = {Johannes M. Ebersold}, title = {Kleine {Einf\"uhrung} in die {Topologie.}}, journal = {Elemente der Mathematik}, pages = {49--54}, publisher = {mathdoc}, volume = {17}, year = {1962}, zbl = {0099.39305}, url = {http://geodesic.mathdoc.fr/item/ELMA_1962__17_140746/} }
Johannes M. Ebersold. Kleine Einführung in die Topologie.. Elemente der Mathematik, Tome 17 (1962), pp. 49-54. http://geodesic.mathdoc.fr/item/ELMA_1962__17_140746/