Kulibaba, A. A., S. A. Girnyk, D. A. Tolstoluzhsky, and BаrаnniкE. A. 2008. “Ppler Myography: Local Registration of Muscular Activity at Static Loading”. Biophysical Bulletin 1 (20), 79-87. https://periodicals.karazin.ua/biophysvisnyk/article/view/1584.