| Issue Date | Title | Author(s) | Type | Мp-cat. |
| 2026 | Affine-Periodic Solutions of Discrete Dynamical Systems: Massera'S Criterion, Affine-Periodic Floquet Decomposition and Existence Results | Kostic, Marko; Koyuncuoglu, Halis Can; Raffoul, Youssef N | Article | |
| 2023 | Almost Automorphic Solutions to Nonlinear Difference Equations | Kostic, Marko; Koyuncuoglu, Halis Can; Fedorov, Vladimir E | Article | |
| 2025 | Asymptotic constancy for solutions of abstract non-linear fractional equations with delay and generalized Hilfer ( a, b, a )- derivatives | Kostic, Marko; Koyuncuoglu, Halis Can; Katican, Tugce | Article | |
| 2024 | Generalized Almost Periodicity in Measure | Kostic, Marko; Du, Wei-Shih; Koyuncuoglu, Halis Can; Velinov, Daniel | Article | |
| 2024 | Metrical Stepanov Almost Automorphy and Applications | Chaouchi, Belkacem; Kostić, Marko   ; Koyuncuoglu, Halis Can | Article | |
| 2023 | Multi-dimensional almost automorphic type sequences and applications | Kostic, Marko; Koyuncuoglu, Halis Can | Article | |
| 2024 | Positive periodic solutions for certain kinds of delayedq -difference equations with biological background | Kostic, Marko; Koyuncuoglu, Halis Can; Raffoul, Youssef N | Article | |
| 2024 | Stepanov-like Pseudo S-Asymptotically (ω,c)-Periodic Solutions of a Class of Stochastic Integro-Differential Equations | Kostic, Marko; Koyuncuoglu, Halis Can; Velinov, Daniel | Article | |
| 2026 | Topologically mixing solutions of abstract multi-term partial fractional Cauchy problems | Kostic, Marko; Koyuncuoglu, Halis Can; Velinov, Daniel | Article | |
| 2025 | Ulam-Hyers Stability of Fractional Difference Equations with Hilfer Derivatives | Kostic, Marko; Koyuncuoglu, Halis Can; Jonnalagadda, Jagan Mohan | Article | |
| 2025 | Weighted pseudo S-asymptotically (ω, c)-periodic solutions to fractional stochastic differential equations | Kostic, Marko; Koyuncuoglu, Halis Can; Velinov, Daniel | Article | |