Kartashov, Yu. N., and A. M. Kulik. “Convergence of Difference Additive Functionals under Local Conditions on Their Characteristics”. Ukrains’kyi Matematychnyi Zhurnal 61, no. 9 (September 25, 2009): 1208–1224. Accessed December 6, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/3093.