1. A. P. Dimitrakopoulos, Urban Forests and Trees, COST action E12 (2002) 157.
2. G. Xanthopoulos, IFFN, 23 (2000) 76.
3. V. C. Radeloff, R. B. Hammer, S. I. Steeart, J. S. Fried, S. S. Holcomb and J. F. McKeefry, Ecol. Appl., 15 (2005) 799.
4. USDA and USDI, Federal Register, 66 (2001) 751.
5. L. F. DeBano, D. G. Neary and P. F. Folliott, Fire’s Effects on Ecosystems, John Wiley and Sons, New York 1998, pp. 20, 24, 57.