MokhonkoA. A. (2008) “Nonisospectral flows on semiinfinite unitary block Jacobi matrices”, Ukrains’kyi Matematychnyi Zhurnal, 60(4), pp. 521–544. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3173 (Accessed: 27November2024).