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@article{MZM_1987_42_4_a1, author = {I. E. Shparlinski}, title = {Number of different prime divisors of recurrence sequences}, journal = {Matemati\v{c}eskie zametki}, pages = {494--507}, publisher = {mathdoc}, volume = {42}, number = {4}, year = {1987}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1987_42_4_a1/} }
I. E. Shparlinski. Number of different prime divisors of recurrence sequences. Matematičeskie zametki, Tome 42 (1987) no. 4, pp. 494-507. http://geodesic.mathdoc.fr/item/MZM_1987_42_4_a1/