@article{JRAM_1973__260_151320,
     author = {Richard H. Hudson},
     title = {On the distribution of k-th power non residues in the interval [1, pa], ... .},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {178--180},
     publisher = {mathdoc},
     volume = {260},
     year = {1973},
     zbl = {0275.10006},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1973__260_151320/}
}