@article{10_4153_CMB_1983_020_5,
     author = {Williams, Kenneth S.},
     title = {On the {Quadratic} {Residues} {(Mod} p) in the {Interval} (0, p/4)},
     journal = {Canadian mathematical bulletin},
     pages = {123--124},
     year = {1983},
     volume = {26},
     number = {1},
     doi = {10.4153/CMB-1983-020-5},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1983-020-5/}
}