@article{MM2_1997__94_2_156336,
     author = {Shoyu Nagaoka},
     title = {Some congruence property of modular forms.},
     journal = {Manuscripta mathematica},
     pages = {253--266},
     publisher = {mathdoc},
     volume = {94},
     number = {2},
     year = {1997},
     zbl = {0892.11018},
     url = {http://geodesic.mathdoc.fr/item/MM2_1997__94_2_156336/}
}