Economics and ecological perspectives on ranching in the eastern Amazon in the 1990s. 18 de September de 1994 Mattos, M. & Uhl, C. 1994.
An attempt to predict which Amazonian tree species may be threatened by logging activities. 18 de September de 1994 Martini, A.; Rosa, N. & Uhl, C. 1994.
Lessons from aging the Amazon frontier: opportunities for genuine development. 18 de September de 1994 Uhl, C.; Veríssimo, A.; Mattos, M.; Barreto, P. ; Tarifa, R. 1994.
An ecosystem perspective on threats to biodiversity in the eastern Amazônia, Pará state. 18 de September de 1993 Uhl, C.; Bezerra, O. & Martini, A. 1993.
Mahogany conservation: status and policy initiatives. 18 de September de 1992 Rodan, B.; Newton, A. & Veríssimo, A. 1992.
Logging impacts and prospects for sustainable forest management in an old Amazon frontier: the case of Paragominas. 18 de September de 1992 Veríssimo, A.; Barreto, P.; Mattos, M.; Tarifa, R. & Uhl, C. 1992.