Branco M., Carnus J.-M., Gonzalez J.R., Grodzki W., Langstrom B.,
Moreira F., Netherer S., Nicoll B., Orazio C., Piou D., Santos H.,
Schelhaas M.-J., Tojic K..
(2007):
Prevalence of biotic and abiotic hazards in European forests - Deliverable PD 2.4.2
European Commission, 29