Ismail M., Law Ch.-K., “A Difference Equation Approach to Plancherel-Rotach Asymptotics Forq-Orthogonal Polynomials”, Stud. Appl. Math., 145:4 (2020), 696–718
А. И. Аптекарев, Д. Н. Туляков, “Параметризация Хессе одной спектральной кривой”, Матем. заметки, 104:5 (2018), 767–770 ; A. I. Aptekarev, D. N. Tulyakov, “Hesse Parametrization of a Spectral Curve”, Math. Notes, 104:5 (2018), 745–748
Kim T., Kim D.S., Mansour T., Seo J.-J., “Linear differential equations for families of polynomials”, J. Inequal. Appl., 2016, 1–8