1. Nitride Crystals; 9702 Gayton Road, Suite 320 Richmond VA 23238 USA
2. University ITMO; Kronverkskiy pr. 49 St. Petersburg 197101 Russia
3. Nitride Crystals Group Ltd.; pr. Engel'sa 27 St. Petersburg 194156 Russia
4. Photonics Center; Boston University; 8 St. Mary's St. Boston MA 02215 USA
5. Herzen University; Nab. r. Moyki 48 St. Petersburg 194186 Russia
6. National University of Science and Technology MISiS; Leninsky Ave. 4 Moscow 119049 Russia
7. School of Advanced Materials Engineering; Chonbuk National University; Jeonju 561-756 Korea