Grytsay, V. I. “Lyapunov Indices and the Poincare Mapping in a Study of the Stability of the Krebs Cycle”. Ukrainian Journal of Physics 60, no. 6 (January 17, 2019): 561. Accessed November 22, 2024. https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019227.