Impact of insects damaging seed cones of cypress, Cupressus sempervirens, in natural stands and plantations of southeastern Europe Alain Roques, Stephanos Markalas, Géraldine Roux, Yong-zhi Pan, Jiang-hua Sun and Jean-Paul RaimbaultAnn. For. Sci., 56 2 (1999) 167-177DOI: https://doi.org/10.1051/forest:19990208