%0 Journal Article %A Takashi Yoshinaga %T On the solutions of quadratic Diophantine equations %J Documenta mathematica %D 2010 %P 347-385 %V 15 %U http://geodesic.mathdoc.fr/articles/10.4171/dm/300/ %R 10.4171/dm/300 %F 10_4171_dm_300