Sukhorolsky , M. A., Veselovska , O. V. and Dostoina , V. V. (2021) “Systems of complex variable polynomials related to classical systems of orthogonal polynomials”, Ukrains’kyi Matematychnyi Zhurnal, 73(11), pp. 1516 - 1531. doi: 10.37863/umzh.v73i11.6699.