@article{1270043231, author = {KAWADA, Koichi}, title = {On the Sum of Four Cubes and a Product of $k$ Factors}, journal = {Tokyo J. of Math.}, volume = {19}, number = {2}, year = {1996}, pages = { 221-244}, language = {en}, url = {http://dml.mathdoc.fr/item/1270043231} }
KAWADA, Koichi. On the Sum of Four Cubes and a Product of $k$ Factors. Tokyo J. of Math., Tome 19 (1996) no. 2, pp. 221-244. http://gdmltest.u-ga.fr/item/1270043231/