1. Institute of Physics
2. Kazimierz Wielki University in Bydgoszcz
3. 85090 Bydgoszcz
4. Poland
5. Institute for Single Crystals
6. National Academy of Sciences of Ukraine
7. 61178 Kharkiv
8. Ukraine
9. Institute for Scintillation Materials
10. 61001 Kharkiv
11. Academy of Sciences of Czech Republic
12. 16200 Prague
13. Czech Republic