Beiranvand, A., and A. G. Ghazanfari. “Improved Young and Heinz Operator Inequalities With Kantorovich Constant”.
Ukrains’kyi Matematychnyi Zhurnal
, vol. 73, no. 1, Jan. 2021, pp. 23-32,
https://doi.org/10.37863/umzh.v73i1.901
.