@article{MAN_1955__129_160427,
     author = {Becker. H.},
     title = {Poincar\'esche {Reihen} zur hermitischen {Modulgruppe.}},
     journal = {Mathematische Annalen},
     pages = {187--208},
     publisher = {mathdoc},
     volume = {129},
     year = {1955},
     zbl = {0064.32901},
     url = {http://geodesic.mathdoc.fr/item/MAN_1955__129_160427/}
}