@article{MAN_1990__288_1_164755,
     author = {Kuniaki Horie},
     title = {Trace formulae and imaginary quadratic fields.},
     journal = {Mathematische Annalen},
     pages = {605--612},
     publisher = {mathdoc},
     volume = {288},
     number = {1},
     year = {1990},
     zbl = {0692.12004},
     url = {http://geodesic.mathdoc.fr/item/MAN_1990__288_1_164755/}
}