1. Oulu University/CAS Group, Erkki Koiso-Kanttila Street 3, FIN-90014 Oulu, Finland
2. Ioffe Institute, Politehnicheskaya 26, 194021 St. Petersburg, Russian Federation
3. National Research University of Electronic Technology (MIET), Shokin Square 1, 124498 Moscow, Russian Federation
4. ITMO University, Kronverkskiy Av.49, 197101 Saint-Petersburg, Russian Federation