- Dmitriy Tverdyi, Roman Parovik, “Application of the Fractional Riccati Equation for Mathematical Modeling of Dynamic Processes with Saturation and Memory Effect”, Fractal Fract, 6, № 3, 2022, 163
- Dmitrii Tverdyi, Evgeny Makarov, Roman Parovik, “Hereditary Mathematical Model of the Dynamics of Radon Accumulation in the Accumulation Chamber”, Mathematics, 11, № 4, 2023, 850
- Dmitriy Tverdyi, Roman Parovik, “Investigation of Finite-Difference Schemes for the Numerical Solution of a Fractional Nonlinear Equation”, Fractal Fract, 6, № 1, 2021, 23