%0 Journal Article %A Dilcher, Karl %T On a diophantine equation involving quadratic characters %J Compositio Mathematica %D 1986 %P 383-403 %V 57 %N 3 %I Martinus Nijhoff Publishers %U http://archive.numdam.org/item/CM_1986__57_3_383_0/ %G en %F CM_1986__57_3_383_0