ZHANG YUDIAN; ZHANG YIRAN; GONG YIXUAN. Prove Four-Color Conjecture With "Color Chain Combination Theory". Japan Journal of Research, [S. l.], v. 5, n. 7, 2024. DOI: 10.33425/2690-8077.1129. Disponível em: https://journals.sciencexcel.com/index.php/jjr/article/view/634. Acesso em: 22 sep. 2024.