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://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/13636. Acesso em: 7 may. 2025.