%0 Journal Article %A M. Kühleitner %T On sums of two kth powers: an asymptotic formula for the mean square of the error term %J Acta Arithmetica %D 2000 %P 263-276 %V 92 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-92-3-263-276/ %R 10.4064/aa-92-3-263-276 %G en %F 10_4064_aa_92_3_263_276