PratsiovytyiM. V. 1998. “On Finite Convolutions of Singular Distributions and a ‘singular analog’ of the Jessen-Wintner Theorem”. Ukrains’kyi Matematychnyi Zhurnal 50 (8), 1082–1088. https://umj.imath.kiev.ua/index.php/umj/article/view/4857.