@article{VMUMM_2004_1_a9,
     author = {S. N. Preobrazhenskii},
     title = {The least power nonresidue in an entier-sequence},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {48--49},
     year = {2004},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2004_1_a9/}
}