@article{JRAM_1982__336_152475,
     author = {S.J. Patterson},
     title = {The constant term of the cubic theta series.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {185--190},
     year = {1982},
     volume = {336},
     zbl = {0484.10018},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1982__336_152475/}
}