%0 Journal Article %A Wolfgang Jenkner %T On divisors whose sum is a square %J Acta Arithmetica %D 1999 %P 113-120 %V 90 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-90-2-113-120/ %R 10.4064/aa-90-2-113-120 %G en %F 10_4064_aa_90_2_113_120