Tokmagambetov, N.S., and B.K. Tolegen. 2025. “Q-Analogues of Lyapunov-Type Inequalities Involving Riemann–Liouville Fractional Derivatives”. Bulletin of the Karaganda University. Mathematics Series 119 (3):214-30. https://doi.org/10.31489/2025m3/214-230.