Roland Häggkvist, Pavol Hell, Donald J. Miller, Víctor Neumann-Lara "On multiplicative graphs and the product conjecture" Combinatorica 8(1): 63–74 (1988) Víctor Neumann-Lara, H. Galeana-Sánchez "On kernel-perfect critical digraphs" Discrete Math. 59: 257–265 (1986) Víctor Neumann-Lara, N. Santorro, Jorge Urrutia "Uniquely colourable m-dichromatic oriented graphs" Discrete Math. 62: 65–70 (1986) Víctor Neumann-Lara, Luis Montejano "A variation of Menger's theorem for long paths" J. Combin. Theory Ser. B 36: 213–217 (1984) Víctor Neumann-Lara, Jorge Urrutia "Vertex critical r-dichromatic tournaments" Discrete Math. 49: 83–87 (1984) Víctor Neumann-Lara, H. Galeana-Sanchez "On kernels and semikernels of digraphs" Discrete Math. 48: 67–76 (1984) Víctor Neumann-Lara "The dichromatic number of a digraph" J. Combin. Theory Ser. B 33: 265–270 (1982) Víctor Neumann-Lara "k-Hamiltonian graphs with given girth" Colloq. Math. Soc. János Bolyai 10: 1133–1142 (1975) References A short biography in Spanish External links Graph Theory white pages 1933 births 2004 deaths 20th-century Mexican mathematicians Graph theorists Topologists National Autonomous University of Mexico alumni Mexican people of German descent People from Huejutla de Reyes National Autonomous University of Mexico faculty