@article{10_4064_aa_13_2_131_149,
     author = {P. Elliott},
     title = {A problem of {Erd\"os} concerning power residue sums.},
     journal = {Acta Arithmetica},
     pages = {131--149},
     publisher = {mathdoc},
     volume = {13},
     number = {2},
     year = {1967},
     doi = {10.4064/aa-13-2-131-149},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-13-2-131-149/}
}