@article{1077378979, author = {Jordan, James H.}, title = {The distribution of $k$-${\rm th}$ power non-residues}, journal = {Duke Math. J.}, volume = {37}, number = {1}, year = {1970}, pages = { 333-340}, language = {en}, url = {http://dml.mathdoc.fr/item/1077378979} }
Jordan, James H. The distribution of $k$-${\rm th}$ power non-residues. Duke Math. J., Tome 37 (1970) no. 1, pp. 333-340. http://gdmltest.u-ga.fr/item/1077378979/