1. ACEL-DGF, 1993. Inventory of eucalyptus national forests 90–91. Association of Cellulose and Paper Industry – Direction General of Forests, Portugal (in Portuguese)
2. Étude des composés terpéniques au cours de la croissance des aiguilles du Pin maritime: comparaison de données biochimiques et ultrastructurales;Bernard-Dagan;Can. J. Bot.,1979
3. Ozone precursor relationships in the ambient atmosphere;Chameides;J. Geophys. Res.,1992
4. Costa, A.F., 1994. Farmacognosia Ed. Fund. Calouste Gulbenkian, 4a–5a ed. Lisbon, Portugal, vol. I, pp. 618–626
5. DGF, 1993. Distribution of forests in continental Portugal. Forested areas by Distrito, no. 303, Direction General of Forests, Portugal (in Portuguese)