1. Earth Science Institute of the Slovak Academy of Sciences , Stará Lesná, SK – 059 60 Tatranská Lomnica, Slovak Republic
2. GIEFS (Groupe International d’Études des Forêts Sud-Européennes) , 69 avenue des Hespérides, FR – 06300 , Nice , France
3. Institute of Forest Ecology SAS Zvolen , Department of Plant Pathology and Mycology , Akademická 2, SK – 949 01 Nitra, Slovak Republic
4. National Forest Centre - Forest Research Institute Zvolen , T. G. Masaryka 2175/22, SK – 960 01 Zvolen, Slovak Republic