- U. Bednarz, M. Pirga, (1,2)-PDS in graphs with the small number of vertices of large degrees, Opuscula Mathematica, vol. 45, no. 1 (2025). (w druku)
- M. Pirga, A. Włoch, I. Włoch, Some New Graph Interpretations of Padovan Numbers, Symmetry, 2024, 16(11), 1493.
- P. Bednarz, M. Pirga, On Proper 2-Dominating Sets in Graphs, Symmetry, 2024, 16(3), 296.