Bentley, Jason, and Piotr Mikusiński. “Transfunctions Applied to Plans, Markov Operators and Optimal Transport”. Annales Mathematicae Silesianae 39, no. 1 (October 29, 2024): 76–93. Accessed December 5, 2025. https://journals.us.edu.pl/index.php/AMSIL/article/view/18062.