@article{1103034379, author = {Muskat, J. B.}, title = {On the solvability of $x^{e}\equiv e\,({\rm mod}\,p)$.}, journal = {Pacific J. Math.}, volume = {14}, number = {4}, year = {1964}, pages = { 257-260}, language = {en}, url = {http://dml.mathdoc.fr/item/1103034379} }
Muskat, J. B. On the solvability of $x^{e}\equiv e\,({\rm mod}\,p)$.. Pacific J. Math., Tome 14 (1964) no. 4, pp. 257-260. http://gdmltest.u-ga.fr/item/1103034379/