%0 Journal Article %A Wenguang Zhai %T On sums and differences of two coprime kth powers %J Acta Arithmetica %D 1999 %P 233-248 %V 91 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-91-3-233-248/ %R 10.4064/aa-91-3-233-248 %G en %F 10_4064_aa_91_3_233_248