Petrakis, P. V., K. Spanos, and A. Feest. “Insect Biodiversity Reduction of Pinewoods in Southern Greece Caused by the Pine Scale (Marchalina Hellenica)”. Forest Systems, Vol. 20, no. 1, Apr. 2011, pp. 27-41, doi:10.5424/fs/2011201-8924.