@article{1102868048, author = {Williams, Kenneth S.}, title = {On Euler's criterion for quintic nonresidues.}, journal = {Pacific J. Math.}, volume = {61}, number = {2}, year = {1975}, pages = { 543-550}, language = {en}, url = {http://dml.mathdoc.fr/item/1102868048} }
Williams, Kenneth S. On Euler's criterion for quintic nonresidues.. Pacific J. Math., Tome 61 (1975) no. 2, pp. 543-550. http://gdmltest.u-ga.fr/item/1102868048/