Verma, Amit K., and Mandeep Singh. “A Note on Existence Results for a Class of Three-Point Nonlinear BVPs”. Mathematical Modelling and Analysis 20, no. 4 (July 20, 2015): 457-470. Accessed May 3, 2024. https://journals.vilniustech.lt/index.php/MMA/article/view/1013.