1. N. N. Vorob’ev, The Fibonacci Numbers (Nauka, Moscow, 1978) [in Russian].
2. S. B. Gashkov and V. N. Chubarikov, Arithmetics. Algorithms. Complexity of Computations (Drofa, Moscow, 2005) [in Russian].
3. A. G. Postnikov, Dokl. Akad. Nauk SSSR 133(6), 1298–1299 (1960).
4. M. P. Mineev, Usp. Mat. Nauk 14(3), 169–171 (1959).
5. N. M. Korobov, Trigonometric Sums and Their Applications (Nauka, Moscow, 1989) [in Russian].