1. Bulgaria, The Paisii Hilendarski University of Plovdiv, Faculty of Chemistry, Department of Organic Chemistry, 24 Tzar Assen str.
2. Bulgaria, Plovdiv, Medical University of Plovdiv, Faculty of Pharmacy, Department of Medical Physics and Biophysics
3. Department of Analytical Chemistry and Computer Chemistry, University of Plovdiv, 4000 Plovdiv, Bulgaria
4. Institute of Optical Materials and Technologies “Acad. J. Malinowski”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
5. Department of Microbiology, Technological Faculty, University of Food Technologies, 4002 Plovdiv, Bulgaria
6. Bulgaria, The Paisii Hilendarski University of Plovdiv, Faculty of Chemistry, Department of Organic Chemistry, 24 Tzar Assen str.,
7. Department of Organic Chemistry, Faculty of Chemistry, The University of Plovdiv “Paisii Hilendarski”, 24 Tzar Assen Str., 4000 Plovdiv, Bulgaria