KÉZÉR, Ildikó. On some problems on composition of arithmetic functions. Teaching Mathematics and Computer Science, [S. l.], v. 16, n. 2, p. 161–181, 2018. DOI: 10.5485/TMCS.2018.0443. Disponível em: https://ojs.lib.unideb.hu/tmcs/article/view/15015. Acesso em: 20 oct. 2024.