1. Bremen Center for Computational Materials Science (BCCMS)
2. Universität Bremen
3. Germany
4. Faculty of Sciences of Bizerte FSB
5. Carthage University
6. 7021 Jarzouna
7. Tunisia
8. Laboratory of Materials
9. Beijing Computational Research Center (CSRC)
10. Beijing
11. Univ Rennes
12. CNRS
13. ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226
14. F-35000 Rennes
15. France