@article{JRAM_1979__310_152156,
     author = {Walter R. Parry},
     title = {A negative result on the representation of modular forms by theta series.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {151--170},
     publisher = {mathdoc},
     volume = {310},
     year = {1979},
     zbl = {0409.10014},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1979__310_152156/}
}