%0 Journal Article %A Chowla, S. %A Friedlander, J. %T Class numbers and quadratic residues %J Glasgow mathematical journal %D 1976 %P 47-52 %V 17 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500002718/ %R 10.1017/S0017089500002718 %F 10_1017_S0017089500002718