Cabada, Alberto, and Rabah Khaldi. “Existence of Solutions of a Second Order Equation Defined on Unbounded Intervals With Integral Conditions on the Boundary”. Malaya Journal of Matematik 9, no. 03 (July 1, 2021): 117–128. Accessed November 21, 2024. https://www.malayajournal.org/index.php/mjm/article/view/67.