@article{1077492260,
author = {Lehmer, D. H.},
title = {The lattice points of an
$n$ -dimensional tetrahedron},
journal = {Duke Math. J.},
volume = {6},
number = {1},
year = {1940},
pages = { 341-353},
language = {en},
url = {http://dml.mathdoc.fr/item/1077492260}
}
Lehmer, D. H. The lattice points of an $n$ -dimensional tetrahedron. Duke Math. J., Tome 6 (1940) no. 1, pp. 341-353. http://gdmltest.u-ga.fr/item/1077492260/