1. Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry; Faculty of Applied Chemistry and Materials Science; University Politehnica of Bucharest; Bucharest Romania
2. Department of Organic Chemistry C. D. Nenitescu; Faculty of Applied Chemistry and Materials Science; University Politehnica of Bucharest; Bucharest Romania
3. Faculty of Materials Science and Engineering; University Politehnica of Bucharest; Bucharest Romania