ALONSO-CARREÓN, J. A.; LÓPEZ-BONILLA, J.; THAPA, G. B. A Note on a Formula of Riordan Involving Harmonic Numbers. Journal of the Institute of Engineering, [S. l.], v. 15, n. 1, p. 226–228, 2020. DOI: 10.3126/jie.v15i1.27738. Disponível em: https://nepjol.info/index.php/JIE/article/view/27738. Acesso em: 18 may. 2024.