@article{1991-granville-tetra ,note={URL: {\tt http://www.math.uga.edu/~andrew/agpapers.html}} ,author={Andrew Granville} ,ISSN={0001--9054} ,journal={Aequationes Mathematicae} ,MR={92b:11070} ,pages={234--241} ,title={{The lattice points of an $n$-dimensional tetrahedron}} ,volume={41} ,year={1991} }