1. Forage Husbandry;Bayer,1998
2. Effects of trees on nutritional quality of understorey gramineous forage in tropical savannas;Belsky;Tropical Grasslands,1992
3. Effects of widely spaced trees and livestock grazing on understory environments in tropical savannas;Belsky;Agroforestry systems,1993
4. Applied Regression Analysis;Draper,1980
5. Esquivel, H., 2004. Relationship between tree cover on farm and pasture productivity of silvopastoral systems in dry ecosystems. Ph.D. Dissertation, Draft. CATIE, Turrialba.