Ayupov, Sh. A., and A. A. Zaitov. “Functor of Weakly Additive τ-Smooth Functionals and Mappings”. Ukrains’kyi Matematychnyi Zhurnal 61, no. 9 (September 25, 2009): 1167–1173. Accessed April 27, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/3089.