Institution: | 1. Kotel''nikov''s Institute of Radio-Engineering and Electronics of RAS, Saratov Branch, Zelenaya 38, Saratov 410019, Russia;2. Saratov State University, Astrakhanskaya, 83 410012, Russia;3. Yuri Gagarin State Technical University of Saratov, Politehnicheskaya 77,Saratov 410054, Russia;4. St.Petersburg State University, Universitetskiy proezd, 28, Peterhof 198504, Russia |