[1]
A. K. Prykarpatsky and V. G. Samoilenko, “Structure of Binary Darboux-Type Transformations for Hermitian Adjoint Differential Operators”, Ukr. Mat. Zhurn., vol. 56, no. 2, pp. 271–275, Feb. 2004, Accessed: Feb. 16, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3751