@article{10_4171_dm_213,
     author = {Goro Shimura},
     title = {Integer-valued quadratic forms and quadratic {Diophantine} equations.},
     journal = {Documenta mathematica},
     pages = {333--367},
     year = {2006},
     volume = {11},
     doi = {10.4171/dm/213},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/213/}
}