1. Implementação do Programa de Acção Florestal na Zona do Pinhal Sul;Almeida;Agroforum,1996
2. Social Choice and Individual Values;Arrow,1963
3. Axioms for social welfare orderings;d'Aspremont,1985
4. Baptista, A.J.P., 1994. Avaliação intermédia do Programa de Acção Florestal em Trás-os-Montes. Estudo exploratório dos projectos privados da 1.a fase. Thesis submitted to the Faculty of the Department of Economics and Sociology of the University of Trás-os-Montes and Alto Douro in partial fulfillement of the requirements for the degree of Master of Science in Extension and Rural Development.
5. The private sector and sustainable forest management — a private perspective from South America's Southern Cone;Castellanos,2001