Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MAT_1963_7_4_a8, author = {P. Erd\H{o}s}, title = {Some unsolved problems}, journal = {Matematika}, pages = {109--143}, publisher = {mathdoc}, volume = {7}, number = {4}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MAT_1963_7_4_a8/} }
P. Erdős. Some unsolved problems. Matematika, Tome 7 (1963) no. 4, pp. 109-143. http://geodesic.mathdoc.fr/item/MAT_1963_7_4_a8/