@article{JRAM_1995__462_153716,
     author = {C.M. Skinner and T.D. Wooley},
     title = {Sums of  two k th powers.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {57--68},
     year = {1995},
     volume = {462},
     zbl = {0820.11059},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1995__462_153716/}
}