@article{PORMA_1974__33_3_115233,
     author = {Thanigasalam, K.},
     title = {Notes on {Waring's} problem},
     journal = {Portugaliae mathematica},
     pages = {163--165},
     publisher = {mathdoc},
     volume = {33},
     number = {3},
     year = {1974},
     mrnumber = {0406962},
     zbl = {0294.10034},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1974__33_3_115233/}
}