TY  - JOUR
AU  - Bai, Yunru 
AU  - Kong, Hua 
TI  - Existence of solutions for nonlinear Caputo-Hadamard fractional  differential equations via the method of upper and lower solutions 
JO  - Journal of nonlinear sciences and its applications
PY  - 2017
SP  - 5744
EP  - 5752
VL  - 10
IS  - 11
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.22436/jnsa.010.11.12/
DO  - 10.22436/jnsa.010.11.12
LA  - en
ID  - JNSA_2017_10_11_a11
ER  -