2001 journal article
Phosphorus availability under annual cropping, alley cropping, and multistrata agroforestry systems
Agroforestry Systems, 53(2), 125–132.
1996 journal article
Nutrient stocks in managed and natural humid tropical fallows
PLANT AND SOIL, 186(2), 293–309.
1994 journal article
BIOMASS AND LITTER ACCUMULATION UNDER MANAGED AND NATURAL TROPICAL FALLOWS
FOREST ECOLOGY AND MANAGEMENT, 67(1-3), 177–190.
1991 journal article
Agroforestry in acid soils of the humid tropics
Advances in Agronomy, 45, 275.
1991 journal article
SOIL-PLANT INTERACTIONS IN AGROFORESTRY SYSTEMS
FOREST ECOLOGY AND MANAGEMENT, 45(1-4), 127–152.