1. Methods of Nonlinear Analysis;Bellman,1973
2. Quasilinearization and Nonlinear Boundary Value Problems;Bellman,1965
3. Existence results of fractional differential equations with Riesz-Caputo derivative;Chen;Eur. Phys. J. Spec. Top.,2017
4. Caputo and related fractional derivatives in singular systems;Dassios;Appl. Math. Comput.,2018
5. Quasilinearization method via lower and upper solutions for Riemann-Liouville fractional differential equations;Denton;Nonlinear Dyn. Syst. Theory,2011