VakarchukS. B. “Reconstruction of Linear Functionals on Classes of Analytic Functions of Two Variables on the Basis of Generalized Information”. Ukrains’kyi Matematychnyi Zhurnal 45, no. 1 (January 25, 1993): 32–37. Accessed November 24, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/5779.