Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MS2_1954__2_165556, author = {K.L. CHUNG}, title = {Problem 9}, journal = {Mathematica Scandinavica}, pages = {345--345}, publisher = {mathdoc}, volume = {2}, year = {1954}, url = {http://geodesic.mathdoc.fr/item/MS2_1954__2_165556/} }
K.L. CHUNG. Problem 9. Mathematica Scandinavica, Tome 2 (1954), p. 345. http://geodesic.mathdoc.fr/item/MS2_1954__2_165556/