Agarwal, Ravi P., Guotao Wang, Bashir Ahmad, Lihong Zhang, Aatef Hobiny, and Shatha Monaquel. “On Existence of Solutions for Nonlinear Q-Difference Equations With Nonlocal Q-Integral Boundary Conditions”. Mathematical Modelling and Analysis 20, no. 5 (September 28, 2015): 604-618. Accessed December 22, 2024. https://journals.vilniustech.lt/index.php/MMA/article/view/1022.