Barish RD. On the Number of $k$-Proper Connected Edge and Vertex Colorings of Graphs: Discrete and Computational Geometry, Graphs, and Games. Thai J Math [Internet]. 2023 Dec. 31 [cited 2024 May 5];21(4):917–936. Available from: https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/1556