ŠEREMETA, M. N.; FEDYNIAK, S. I. О производной ряда Дирихле. Mathematical Modelling and Analysis, [S. l.], v. 1, n. 1, p. 76–78, 1996. DOI: 10.3846/13926292.1996.9637060. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/10050. Acesso em: 2 jun. 2025.