@article{ellison:1971:wp,
    author = {Ellison, W. J.},
     title = {{W}aring's problem},
   journal = {Amer. Math. Monthly},
    volume = {78},
      year = {1971},
    number = {1},
     pages = {10–36},
   mrclass = {10J05},
  mrnumber = {MR0414510 (54 \#2611)},
mrreviewer = {J. W. S. Cassels},
     links = {\URL[FullText]{http://links.jstor.org/sici?sici=0002-9890%28197101%2978%3A1%3C10%3AWP%3E2.0.CO%3B2-Q}},
     zblno = {0221.65027}}