LEMANSKA, MAGDALENA; ROSICKA, MONIKA; ZUAZUA, RITA. Graphs with C3-free vertices are not universal fixers. Utilitas Mathematica , [S. l.], v. 105, 2017. Disponível em: https://utilitasmathematica.com/index.php/Index/article/view/1165. Acesso em: 1 may. 2026.