KUZMA, Bojan, 2008, Poon, Edward: Schur-multiplicative maps preserving unitarily invariant norms. (English). - [J] Linear Algebra Appl. 428, No. 4, 865-870 (2008). [ISSN 0024-3795]. [online]. 2008. [Accessed 10 April 2025]. Retrieved from: http://www.zentralblatt-math.org/zmath/en/advanced/?q=an:1137.15003