@article{GDZPPN002208318,
title = {On the number of solutions of N - p = Pr.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {416},
year = {1991},
pages = {117-130},
zbl = {0702.11065},
url = {http://dml.mathdoc.fr/item/GDZPPN002208318}
}
Kan, Jiahai. On the number of solutions of N - p = Pr.. Journal für die reine und angewandte Mathematik, Tome 416 (1991) pp. 117-130. http://gdmltest.u-ga.fr/item/GDZPPN002208318/