1. Frumkin Institute of Physical Chemistry and Electrochemistry RAS
2. Moscow
3. Russia
4. Institute of Geology of ore deposits, petrography, mineralogy and geochemistry RAS
5. Shubnikov Institute of Crystallography FSRC "Crystallography and Photonics" RAS
6. V.Bakul Institute for Superhard Materials NASU
7. Kyiv
8. Ukraine