at The European Association of Environmental and Resource Economists (EAERE) Fifth Annual Conference, Dublin, Ireland | 1994

Fourth National Conference of Environmental Quality | 1994

VI Iberian Congress on Solar Energy, Lisbon | 1993

2nd Environmental Engineers National Congress, Lisbon | 1993

Ambiente (5), June 1993, pp. 16-19. Portuguese Industrial Association, Lisbon | 1993