@article{JRAM_1993__438_153514,
     author = {Toshiaki Suzuki},
     title = {On the biquadratic theta series.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {31--86},
     publisher = {mathdoc},
     volume = {438},
     year = {1993},
     zbl = {0789.11026},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1993__438_153514/}
}