1. Faculty of Chemistry, Department of Inorganic Chemistry University of Bucharest Bucharest Romania
2. Laboratory of Atomic Structures and Defects in Advanced Materials, LASDAM National Institute of Materials Physics Măgurele Ilfov Romania
3. Faculty of Biology, Department of Microbiology University of Bucharest Bucharest Romania
4. Academy of Romanian Scientists Bucharest Romania
5. Faculty of Biology, Department of Anatomy, Animal Physiology and Biophysics University of Bucharest Bucharest Romania