@article{MAN_1974__209_162596,
     author = {Erik A. Lippa},
     title = {Siegel {Modular} {Forms} of {Degree} {Two:} {Hecke} {Eigenforms.}},
     journal = {Mathematische Annalen},
     pages = {195--200},
     publisher = {mathdoc},
     volume = {209},
     year = {1974},
     zbl = {0267.10033},
     url = {http://geodesic.mathdoc.fr/item/MAN_1974__209_162596/}
}