Mullari, T., Kotta, Ü., Bartosiewicz, Z., & Pawłuszewicz, E. (2012). The Concepts of Lie Derivative for Discrete-time Systems. Proceedings of the Estonian Academy of Sciences, 61(4), 253-265. https://www.airitilibrary.com/Article/Detail?DocID=17367530-201212-201310180036-201310180036-253-265