%0 Journal Article %A Manfred Kühleitner %A Werner Georg Nowak %T On sums of two $k$th powers: a mean-square asymptotics over short intervals %J Acta Arithmetica %D 2001 %P 191-203 %V 99 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa99-2-6/ %R 10.4064/aa99-2-6 %G en %F 10_4064_aa99_2_6