Voir la notice de l'article provenant de la source European Digital Mathematics Library
@misc{ELMA_1971__26_141003, title = {Bericht.}, journal = {Elemente der Mathematik}, pages = {21--24}, publisher = {mathdoc}, volume = {26}, year = {1971}, url = {http://geodesic.mathdoc.fr/item/ELMA_1971__26_141003/} }
Bericht.. Elemente der Mathematik, Tome 26 (1971), pp. 21-24. http://geodesic.mathdoc.fr/item/ELMA_1971__26_141003/