1. APCOR (Portuguese Cork Association). 2012. Cortiça—Cork 2012. http://www.apcor.pt/userfiles/File/Publicacoes/anuario2012.pdf (26 November 2013).
2. Branco, M. and A. P. Ramos. 2009. Coping with pests and diseases. The tree. In: Cork oak woodlands on the edge. Ecology, adaptive management, and restoration, eds. J. Aronson, J. S. Pereira, and J. G. Pausas, 103–111. Washington, D.C.: Island Press.
3. Caritat, A., E. Gutiérrez, and M. Molinas. 2000. Influence of weather on cork-ring width. Tree Physiology 20:893–900.
4. Chapin, F. S., E.-D. Schulze, and H. A. Mooney. 1990. The ecology and dynamics of storage in plants. Annual Review of Ecology and Systematics 21:423–447.
5. Clutter, J. L., J. C. Folrtson, L. V. Pienaar, G. H. Brister, and R. L. Bailey. 1992. Timber management: A quantitative approach. John Wiley and Sons, Florida.