HOU, XINMIN; LU, YOU; XU, XIRONG. A characterization of (γt, 2γ)-block graphs. Utilitas Mathematica , [S. l.], v. 82, 2010. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/709. Acesso em: 8 may. 2026.