1. Department of Organic ChemistryUniversity of Chemical Technology and Metallurgy Sofia Bulgaria
2. Laboratory Chemistry and Biophysics of Proteins and Enzymes, Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences Sofia Bulgaria
3. Department of Ecosystem Research, Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences Sofia Bulgaria
4. Department of Behavioral Neurobiology, Institute of Neurobiology, Bulgarian Academy of Sciences Sofia Bulgaria