Remarks about the Eilenberg-Zilber type decomposition in cosimplicial sets C. Ruiz Salguero; Roberto Ruiz S. — 1978 Revista colombiana de matematicas
Kann fibrations which are homomorphisms of simplicial groups C. Ruiz Salguero; R. Ruiz — 1973 Revista colombiana de matematicas
Any equivalence relation over a category is a simplicial C. Ruiz Salguero; R. Ruiz — 1976 Revista colombiana de matematicas