BEIRANVAND, A.; GHAZANFARI, A. G. Improved Young and Heinz operator inequalities with Kantorovich constant. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 73, n. 1, p. 23–32, 2021. DOI: 10.37863/umzh.v73i1.901. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/901. Acesso em: 7 apr. 2025.