%0 Journal Article %A Scourfield, E. J. %T On the divisibility of r2(n) %J Glasgow mathematical journal %D 1977 %P 109-111 %V 18 %N 1 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089500003128/ %R 10.1017/S0017089500003128 %F 10_1017_S0017089500003128