On the transformations of the logarithmic series. Annual of Sofia University St. Kliment Ohridski. Faculty of Mathematics and Informatics, [S. l.], v. 105, p. 3–44, 2018. DOI: 10.60063/gsu.fmi.105.3-44. Disponível em: https://annual.uni-sofia.bg/index.php/fmi/article/view/8. Acesso em: 14 dec. 2025.