@article{MAN_1969__183_161902,
     author = {A.P. OGG},
     title = {Functional {Equations} of {Modular} {Forms.}},
     journal = {Mathematische Annalen},
     pages = {337--340},
     publisher = {mathdoc},
     volume = {183},
     year = {1969},
     zbl = {0191.38102},
     url = {http://geodesic.mathdoc.fr/item/MAN_1969__183_161902/}
}