HU, MING-JUN; WANG, LU-BANG. Remarks on the sum of squares of eccentricity of graphs. Utilitas Mathematica , [S. l.], v. 93, 2014. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/1056. Acesso em: 9 jul. 2026.