LEÓN-VEGA, C. G.; LÓPEZ-BONILLA, J.; AGUSTÍN, S. Y.-S. Petersen-Varchenko’s Identity for Stirling Numbers of the First Kind. Journal of the Institute of Engineering, [S. l.], v. 14, n. 1, p. 162–164, 2018. DOI: 10.3126/jie.v14i1.20080. Disponível em: https://www.nepjol.info/index.php/JIE/article/view/20080. Acesso em: 23 apr. 2024.