1. Saratov State University, 83 Astrakhanskaya st., Saratov 410012, Russia
2. Peoples’ Friendship University of Russia, 6 Mikluho-Maklaya St., Moscow 117198, Russia
3. Yuri Gagarin State Technical University of Saratov, 77 Politekhnicheskaya st., Saratov 410054, Russia
4. Tomsk State University, 36 Lenin Ave., Tomsk 634050, Russia
5. National University of Oil and Gas (Gubkin University), 65 Leninsky Prospekt, Moscow 119991, Russia
6. Skolkovo Institute of Science and Technology, 3 Nobelya st., Moscow 121205, Russia
7. Ghent University, 653 Coupure Links, Ghent 9000, Belgium
8. Saratov State Medical University, 112 Bolshaya Kazachia st., Saratov 410012, Russia
9. Institute of Precision Mechanics and Control, Russian Academy of Sciences, 24 Rabochaya St., Saratov 410028, Russia
10. Queen Mary University of London, Mile End Road, London E1 4NS, U.K.
11. Moscow Institute of Physics and Technology, 9 Institutskiy per., Dolgoprudny, Moscow 141701, Russia