1. Institute of Automation and Electrometry RAS, Novosibirsk, Russia
2. V.S. Sobolev Institute of Geology and Mineralogy, Russian Academy of Sciences, Novosibirsk, Russia
3. Novosibirsk State University, Novosibirsk, Russia
4. Research Institute of Physics, Faculty of Physics, Southern Federal University, Rostov-on-Don, Russia