SOFO, A. Half integer values of order-two harmonic numbers sums. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 68, n. 10, p. 1418–1429, 2016. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1929. Acesso em: 5 dec. 2025.