DRAMBYAN, Aram K.; MIKAELYAN, Hamlet V. ON SEMISTRONG EDGE-COLORINGS OF OUTERPLANAR GRAPHS. Proceedings of the YSU A: Physical and Mathematical Sciences, Yerevan, Armenia, v. 59, n. 2 (267), p. 32–45, 2025. DOI: 10.46991/PYSUA.2025.59.2.032. Disponível em: https://journals.ysu.am/index.php/proceedings-phys-math/article/view/vol59_no2_2025_pp032-045. Acesso em: 21 jan. 2026.