@article{MAN_1990__287_1_164707,
     author = {Jan Nekov\'ar},
     title = {Class numbers of quadratic fields and {Shimura's} correspondence.},
     journal = {Mathematische Annalen},
     pages = {577--594},
     publisher = {mathdoc},
     volume = {287},
     number = {1},
     year = {1990},
     zbl = {0679.12009},
     url = {http://geodesic.mathdoc.fr/item/MAN_1990__287_1_164707/}
}