%0 Journal Article %A T Estermann %T On the representations of a number as a sum of squares %J Acta Arithmetica %D 1936 %P 47-79 %V 2 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-2-1-47-79/ %R 10.4064/aa-2-1-47-79 %G en %F 10_4064_aa_2_1_47_79