1. University of Belgrade, Institute of Chemistry, Technology and Metallurgy, National institute of the Republic of Serbia, Njegoševa 12, Belgrade 11000, Serbia
2. Phycology, Faculty of Biology, University of Duisburg-Essen, Universitätsstr. 2, 45141 Essen, Germany
3. Institute of Biology, Faculty of Natural Sciences, Ss Cyril and Methodius University, Arhimedova 3, 1000 Skopje, R. Macedonia
4. University of Belgrade, Faculty of Biology, Institute of Botany and Botanical Garden “Jevremovac“, 43 Takovska, Belgrade 11000, Serbia
5. Institute of Forestry, Kneza Višeslava 3, 11030 Belgrade, Serbia