PETROSYAN, Tigran K. VERTEX DISTINGUISHING PROPER EDGE COLORINGS OF THE JOIN GRAPHS. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 59, n. 1 (266), p. 10–19, 2025. DOI: 10.46991/PYSUA.2025.59.1.010. Disponível em: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol59_no1_2025_pp010-019. Acesso em: 21 jan. 2026.