- A. A. Kalybay, “Two-Sided Estimates of the Norm for a Class of Matrix Operators”, Sib. Adv. Math., 32, no. 1, 2022, 29

- A. Kalybay, D. Karatayeva, “Oscillation and Nonoscillation Criteria for a Half-Linear Difference Equation of the Second Order and the Extended Discrete Hardy Inequality”, Ukr Math J, 74, no. 1, 2022, 50

- Aigerim Kalybay, Ryskul Oinarov, Ainur Temirkhanova, “Boundedness ofn-Multiple Discrete Hardy Operators with Weights for1<q<p<∞”, Journal of Function Spaces and Applications, 2013, 2013, 1

- Dmitrii Vladimirovich Prokhorov, Vladimir Dmitrievich Stepanov, “О весовых дискретных неравенствах Харди и Римана-Лиувилля”, Математические заметки, 117, no. 1, 2025, 128

- D. V. Prokhorov, V. D. Stepanov, “On Weighted Discrete Hardy and Riemann–Liouville Inequalities”, Math Notes, 117, no. 1-2, 2025, 138
