@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/