Affiliation: | (1) Institute of Physics, St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199164, Russia;(2) Institute of High-Molecular-Weight Compounds, Russian Academy of Sciences, Bol’shoi pr. 31, St. Petersburg, 199004, Russia;(3) Faculty of Biology and Soil Sciences, St. Petersburg State University, Universitetskaya nab. 7/9, St. Petersburg, 199034, Russia |