Myronyuk, M. V. (2008) “On the Skitovich-Darmois theorem and Heyde theorem in a Banach space”, Ukrains’kyi Matematychnyi Zhurnal, 60(9), pp. 1234–1242. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3239 (Accessed: 23June2024).