@article{10_4064_aa_58_1_89_102,
     author = {Ming Lu},
     title = {On a problem of sums of mixed powers},
     journal = {Acta Arithmetica},
     pages = {89--102},
     publisher = {mathdoc},
     volume = {58},
     number = {1},
     year = {1991},
     doi = {10.4064/aa-58-1-89-102},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-58-1-89-102/}
}