Voir la notice de l'article provenant de la source European Digital Mathematics Library
@misc{ELMA_1950__5_140528, title = {Aufgaben.}, journal = {Elemente der Mathematik}, pages = {18--21}, publisher = {mathdoc}, volume = {5}, year = {1950}, url = {http://geodesic.mathdoc.fr/item/ELMA_1950__5_140528/} }
Aufgaben.. Elemente der Mathematik, Tome 5 (1950), pp. 18-21. http://geodesic.mathdoc.fr/item/ELMA_1950__5_140528/