1. M. Z. Garaev, Acta Arith. 108 (3), 245 (2003). Re ζ(s) and Im ζ(s)
2. J. Mozer, Acta Arith. 34 (1), 25 (1977).
3. J. van de Lune, Some Observations Concerning the Zero-Curves of the Real and Imaginary Part of Riemann’s Zeta Function (Mathematical Centrum, Amsterdam, 1983), Afd. Zuiv. Wisk. ZW201/83.
4. A. A. Karatsuba and M. A. Korolev, Uspekhi Mat. Nauk 60 (3), 41 (2005) [Russian Math. Surveys 60 (3), 433 (2005)].
5. R. J. Backlund, ActaMath. 41 (1), 345 (1916).