1. Abdeljawad, T.: On conformable fractional calculus. J. Comput. Appl. Math. 279, 57–66 (2015)
2. Agarwal, R.P., Otero-Espinar, V., Perera, K., Vivero, D.R.: Basic properties of Sobolev’s spaces on time scales. Adv. Differ. Equ. 2006, 14 (2006)
3. Ahmadkhanlu, A., Jahanshahi, M.: On the existence and uniqueness of solution of initial value problem for fractional order differential equations on time scales. Bull. Iran. Math. Soc. 38(1), 241–252 (2012)
4. Anderson, D.R., Avery, R.I.: Fractional-order boundary value problem with Sturm–Liouville boundary conditions. Electron. J. Differ. Equ. 2015(29), 10 (2015)
5. Atici, M.F., Guseinov, G.S.: On Green’s functions and positive solutions for boundary value problems on time scales. J. Comput. Appl. Math. 141(1–2), 75–99 (2002)