Vascular flora of the Sierra de Catorce and adjacent territories, San Luis Potosí, Mexico Údair: González Costilla, Onésimo, Giménez de Azcárate, Joaquín, García Pérez, José, Aguirre Rivera, Juan Rogelio

Natural regeneration of tree species in a medium subperennifolia forest disturbed by forest extraction Údair: Macario Mendoza, Pedro Antonio, Garcia Moya, Edmundo, Aguirre Rivera, Juan Rogelio, Hernández Xolocotzi, Efraím

Succession dynamics of the sierra de Alvarez oak forests in San Luis Potosí, México Údair: Castillo Lara, Pedro, Flores Cano, Jorge Alberto, Aguirre Rivera, Juan Rogelio, Yeaton H., Richard I.