Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{ELMA_1960__15_140717, author = {A. Rotkiewicz}, title = {Sur le probl\`eme de {Catalan.}}, journal = {Elemente der Mathematik}, pages = {121--124}, publisher = {mathdoc}, volume = {15}, year = {1960}, zbl = {0096.02804}, url = {http://geodesic.mathdoc.fr/item/ELMA_1960__15_140717/} }
A. Rotkiewicz. Sur le problème de Catalan.. Elemente der Mathematik, Tome 15 (1960), pp. 121-124. http://geodesic.mathdoc.fr/item/ELMA_1960__15_140717/