Voir la notice de l'article provenant de la source European Digital Mathematics Library
@misc{ELMA_1971__26_141026, title = {Aufgaben.}, journal = {Elemente der Mathematik}, pages = {115--117}, publisher = {mathdoc}, volume = {26}, year = {1971}, url = {http://geodesic.mathdoc.fr/item/ELMA_1971__26_141026/} }
Aufgaben.. Elemente der Mathematik, Tome 26 (1971), pp. 115-117. http://geodesic.mathdoc.fr/item/ELMA_1971__26_141026/