V.V. , Nikolaevsky, and Zibo Xu. “Toward a New Financial Paradigm: A System-Activity Approach”. International Journal of Multidisciplinary Research 2, no. 1 (January 31, 2026): 86–95. Accessed February 4, 2026. https://www.ijmrscience.org/index.php/ijmr/article/view/77.