Kliś-Garlicka, Kamila. “Perturbation of Toeplitz Operators and Reflexivity”. Annales Universitatis Paedagogicae Cracoviensis Studia Mathematica 13 (December 11, 2014): 15–18. Accessed October 29, 2026. https://studmath.uken.krakow.pl/article/view/13197.