1. Brown, A., Halmos, P.: Algebraic properties of Toeplitz operator. J. Reine Angew. Math. 213, 89–102 (1964)
2. Bu, Q., Chen, Y., Zhu, S.: Complex symmetric Toeplitz operators. Integr. Equ. Oper. Theory 93(15), 99 (2021)
3. Coburn, L.A.: Weyl’s theorem for nonnormal operators. Mich. Math. J. 13, 285–288 (1966)
4. Cowen, C.C.: On equivalence of Toeplitz operators. J. Oper. Theory 7, 167–172 (1982)
5. Douglas, R.G.: Banach Algebra Techniques in Operator Theory, 2nd edn. Springer, Berlin (1998)