On the Lax integrability of a generalized fifth-order KdV model with time-dependent coefficients in fluid dynamicsMeng’en Wang, Tianwei Qiu, Xingjia He, Hanyue Deng, Yichao Wang and Guangmei WeiEur. Phys. J. Spec. Top., 234 18 (2025) 5403-5413DOI: https://doi.org/10.1140/epjs/s11734-025-01848-w