1. Hilfer, R. (ed.): Application of fractional calculus in physics. World scientific publishing Co., Singapore (2000)
2. Kilbas, A.A., Srivastava, H.M., Trujillo, J.J.: Theory and applications of fractional differential equations, 24. North-Holland Mathematics Studies, Amsterdam (2006)
3. Anastassiou, G.A.: On right fractional calculus. Chaos Solitons Fractals 42(1), 365–376 (2009)
4. Houas, M., Dahmani, Z.: New results for a coupled system of fractional differential equations. Facta Universitatis Ser. Math. Inform. 28(2), 133–150 (2013)
5. Khan, R.A., Khan, A., Samad, A., Khan, H.: On existence of solutions for fractional differential equations with p-Laplacian operator. J. Fract. Calc. Appl. 5(2), 28–37 (2014)