GAYATHRI S.; BHARATI R.; STAS M.; PETRILLOVA J. Crossing numbers of Cartesian product of path with certain graphs on six vertices. Utilitas Mathematica , [S. l.], v. 116, 2020. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/1469. Acesso em: 26 jul. 2026.