1. A. Garcia and J. F. Voloch, “Fermat curves over finite fields,” J. Number Theory 30(3), 345–356 (1988).
2. D. R. Heath-Brown and S. V. Konyagin, “New bounds for Gauss sums derived from kth powers and for Heilbronn’s exponential sum,” Q. J. Math. 51(2), 221–235 (2000).
3. S. A. Stepanov, “On the number of points of a hyperelliptic curve over a finite prime field,” Izv. Akad. Nauk SSSR Ser. Mat. 33(5), 1171–1181 (1969) [Math. USSR-Izv. 3 (5), 1103–1114 (1969)].
4. I. V. V’yugin and I. D. Shkredov, “On additive shifts of multiplicative subgroups,” Mat. Sb. 203(6), 81–100 (2012) [Sb. Math. 203 (6), 844–863 (2012)].
5. I. V. V’yugin, E. V. Solodkova, and I. D. Shkredov, “Intersections of shifts of multiplicative subgroups,” Mat. Zametki 100(2), 185–195 (2016) [Math. Notes 100 (2), 189–198 (2016)].