MOROZ, M. P. Numerical characteristics of the random variable associated with the expansions of real numbers by the Engel series. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 72, n. 5, p. 658–666, 2020. DOI: 10.37863/umzh.v72i5.2284. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2284. Acesso em: 8 dec. 2025.