[1] Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Belgrade,11000, Serbia
[2] Institute for Technology of Nuclear and Other Mineral Raw Materials, Belgrade,11000, Serbia
[3] Faculty of Forestry, University of Sarajevo, Sarajevo,71000, Bosnia and Herzegovina
[4] Faculty of Chemistry, University of Belgrade, Belgrade,11000, Serbia
[5] Dipartimento di Agricoltura, Ambiente e Alimenti, Università degli Studi del Molise, Campobasso,86100, Italy
[6] Centro di Ricerca per le Aree Interne e gli Appennini (ArIA), Università degli Studi del Molise, Campobasso,86100, Italy
[7] The EFI Project Centre on Mountain Forests (MOUNTFOR), San Michele a/Adige, Trento, Italy