1. Chemistry and Chemical Engineering Department, Faculty of Applied Chemistry and Engineering, “Ovidius” University from Constanta, 900470 Constanta, Romania
2. Romanian Philology, Classical and Balkan Languages Department, Faculty of Letters, “Ovidius” University from Constanta, 900470 Constanta, Romania
3. Department of Fundamental Sciences and Humanities, Constanta Maritime University, 900663 Constanta, Romania