Громова, Екатерина, Ekaterina Gromova, Екатерина Марова, and Ekaterina Marova. “Superadditive Extension of Characteristic Functions for Cooperative Differential Games”. Mathematical Game Theory and Applications 12, no. 4 (December 23, 2020): 40-61. Accessed May 14, 2025. http://mgta.krc.karelia.ru/ojs/index.php/mgta/article/view/25.