Bandyrskii BI, Makarov VL, Romaniuk NM. Generalization of resonance equations for the Laguerre- and Legendre-type polynomials to the fourth-order equations. Ukr. Mat. Zhurn. [Internet]. 2019 Nov. 25 [cited 2025 Dec. 5];71(11):1529-38. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/1533