- Evgeniy Krasko, Alexander Omelchenko, “Enumeration of unsensed orientable and non-orientable maps”, European Journal of Combinatorics, 86, 2020, 103093
- Evgeniy Krasko, Alexander Omelchenko, “Enumeration of r-regular maps on the torus. Part I: Rooted maps on the torus, the projective plane and the Klein bottle. Sensed maps on the torus”, Discrete Mathematics, 342, no. 2, 2019, 584
- Evgeniy Krasko, Alexander Omelchenko, “Enumeration of rooted 4-regular maps without planar loops”, Discrete Mathematics, 344, no. 8, 2021, 112442