- M. Pirga, M. Startek, I. Włoch, Counting of independent sets including the set of leaves in graphs with two elementary cycles, Proceedings of the Romanian Academy, Series A, vol. 26(4), 2025, 347-357. https://acad.ro/sectii2002/proceedings/doc2025-4/PRA_2025_4_03-Pirga_Startek_Włoch.pdf
- U. Bednarz, M. Pirga, (1,2)-PDS in graphs with the small number of vertices of large degrees, Opuscula Math. 45, no. 1 (2025), 53-62. https://doi.org/10.7494/OpMath.2025.45.1.53
- M. Pirga, A. Włoch, I. Włoch, Some New Graph Interpretations of Padovan Numbers, Symmetry, 2024, 16(11), 1493. https://doi.org/10.3390/sym16111493
- P. Bednarz, M. Pirga, On Proper 2-Dominating Sets in Graphs, Symmetry, 2024, 16(3), 296. https://doi.org/10.3390/sym16030296
