1. Department of Physics, Novosibirsk State University, 2 Pirogov Str., Novosibirsk 630090, Russia
2. Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, 10 Lavrentiev Ave., Novosibirsk 630090, Russia
3. Department of Natural Sciences, Novosibirsk State University, 2 Pirogov Str., Novosibirsk 630090, Russia