Voir la notice de l'article dans European Digital Mathematics Library
@article{MAN_1934__109_159674, author = {R.D. James}, title = {The representation of integers as sums of pyramidal numbers .}, journal = {Mathematische Annalen}, pages = {196--199}, publisher = {mathdoc}, volume = {109}, year = {1934}, zbl = {0008.14704}, url = {https://geodesic-test.mathdoc.fr/item/MAN_1934__109_159674/} }
R.D. James. The representation of integers as sums of pyramidal numbers .. Mathematische Annalen, Tome 109 (1934), pp. 196-199. https://geodesic-test.mathdoc.fr/item/MAN_1934__109_159674/