SANGEETHA, V.; ANUPREETHI, T.; SOMANATH, S. Manju. Ramanujan Primes and Negative Pell’s Equation. Optimality, [S. l.], v. 2, n. 4, p. 294–302, 2025. DOI: 10.22105/opt.v2i4.92. Disponível em: https://www.opt.reapress.com/journal/article/view/92.. Acesso em: 12 jan. 2026.