1.
Qin H. Existence of Positive Solutions for Second-Order Nonlinear Impulsive singular questions with integral Boundary Conditions in Banach Spaces. ijmcr [Internet]. 18Dec.2018 [cited 22Apr.2019];6(12):1943-7. Available from: http://ijmcr.in/index.php/ijmcr/article/view/243