@article{IM_1981__63_142797,
     author = {Haruzo Hida},
     title = {Congruences of {Cusp} {Forms} and {Special} {Values} of {Their} {Zeta} {Functions.}},
     journal = {Inventiones mathematicae},
     pages = {225--262},
     publisher = {mathdoc},
     volume = {63},
     year = {1981},
     zbl = {0459.10018},
     url = {http://geodesic.mathdoc.fr/item/IM_1981__63_142797/}
}