@article{1028998438, author = {Mordell, L. J.}, title = {The representation of integers by three positive squares.}, journal = {Michigan Math. J.}, volume = {7}, number = {1}, year = {1960}, pages = { 289-290}, language = {en}, url = {http://dml.mathdoc.fr/item/1028998438} }
Mordell, L. J. The representation of integers by three positive squares.. Michigan Math. J., Tome 7 (1960) no. 1, pp. 289-290. http://gdmltest.u-ga.fr/item/1028998438/