1. Adiguzel, R.S., Aksoy, U., Karapinar, E., et al.: On the solutions of fractional differential equations via Geraghty type hybrid contractions. Appl. Comput. Math. 20(2), 313–333 (2021)
2. Bai, Z., Lv, H.: Positive solutions for boundary value problem of nonlinear fractional differential equation. J. Math. Anal. Appl. 311(2), 495–505 (2005)
3. Lazreg, J.E., Abbas, S., Benchohra, M., et al.: Impulsive Caputo-Fabrizio fractional differential equations in b-matric spaces. Open Math. 19, 363–372 (2021)
4. Ahmad, B., Ntouyas, S.K.: Existence results for a coupled system of Caputo type sequential fractional differential equations with nonlocal integral boundary conditions. Appl. Math. Comput. 266, 615–622 (2015)
5. Isaia, F.: On a nonlinear integral equation without compactness. Acta Math. Univ. Comen. 75(2), 233–240 (2016)