Finkelshtein, Dmitri, Yuri Kondratiev, Eugene Lytvynov, and Maria João Oliveira. “Finite Difference Calculus in the Continuum”. Ukrains’kyi Matematychnyi Zhurnal 77, no. 4 (June 11, 2025): 291–292. Accessed December 5, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/8551.