KAHLIG, Peter; MATKOWSKI, Janusz. Generalization of the harmonic weighted mean via Pythagorean invariance identity and application. Annales Mathematicae Silesianae, [S. l.], v. 34, n. 1, p. 104–122, 2020. Disponível em: https://journals.us.edu.pl/index.php/AMSIL/article/view/13636. Acesso em: 18 apr. 2025.