Explicit solutions for linear variable-coefficient fractional differential equations with respect to functions. - Joel E. Restrepo; Michael V. Ruzhansky; Durvudkhan Suragan (Appl. Math. Comput., 2021)

On linear fractional differential equations with variable coefficients. - Arran Fernandez; Joel E. Restrepo; Durvudkhan Suragan (Appl. Math. Comput., 2022)