Mazakov, T. Z., Jomartova, S. A., Zhakypov, A. T., & Tursynbay, A. T. (2015). Controllability Criterion of Nonlinear Dynamical Systems. Journal of Mathematics, Mechanics and Computer Science, 86(3), 19–23. Retrieved from https://bm.kaznu.kz/index.php/kaznu/article/view/307