Barycentric Ramsey numbers for small graphs. González, Samuel; González, Leida; Ordaz, Oscar — 2009 Bulletin of the Malaysian Mathematical Sciences Society. Second Series
Hamiltonian virus-free digraphs. Ordaz, Oscar; González, Leida; Márquez, Isabel; Quiroz, Domingo — 2000 Divulgaciones Matemáticas
Constrained and generalized barycentric Davenport constants. González, Leida; Márquez, Isabel; Ordaz, Oscar; Quiroz, Domingo — 2007 Divulgaciones Matemáticas