@article{10_4153_CMB_1975_078_1,
     author = {Davison, J. L.},
     title = {A {Result} on {Sums} of {Squares}},
     journal = {Canadian mathematical bulletin},
     pages = {425--426},
     year = {1975},
     volume = {18},
     number = {3},
     doi = {10.4153/CMB-1975-078-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1975-078-1/}
}