1. Laboratory of Mathematical Chemistry, University “Prof As Zlatarov”, 1 Yakim Street, Bourgas, Bulgaria
2. DuPont Haskell Global Centers for Health and Environmental
Sciences, 1090 Elkton Road, Newark, Delaware 19711, United States
3. School of
Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, U.K.