Zhanabaev, Z., A. Temirbayev, S. Tarasov, M. Rosenblum, and N. Almasbekov. “SYNCHRONIZATION IN ENSEMBLE OF NONLINEARLY GLOBAL COUPLING RADIO ENGINEERING GENERATORS”. Recent Contributions to Physics, vol. 2011, no. 1, Nov. 2017, pp. 76-82, https://bph.kaznu.kz/index.php/zhuzhu/article/view/991.