%0 Journal Article %A Gundlach, Karl-Bernhard %T On the representation of a number as a sum of squares %J Glasgow mathematical journal %D 1978 %P 173-197 %V 19 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003608/ %R 10.1017/S0017089500003608 %F 10_1017_S0017089500003608