1. Babes-Bolyai University; Biomolecular Physics Department; Kogalniceanu 1 RO-400084 Cluj-Napoca Romania
2. University of Dubrovnik; Department for Aquaculture; Ćira Carića 4 20000 Dubrovnik Croatia
3. Babes-Bolyasi University; Facultu of Chemistry and Chemical Engineering; Arany Janos 11 Cluj-Napoca Romania
4. National Institute for Research and Development of Isotopic and Molecular Technologies; 67-103 Donat, PO Box 700 400293 Cluj-Napoca Romania