MARONCELLI, Daniel and RODRÍGUEZ, Jesús. Some existence results for nonresonant difference equations on infinite intervals subject to nonlocal boundary conditions. Topological Methods in Nonlinear Analysis. Online. 14 February 2025. Vol. 65, no. 1, pp. 123 - 143. [Accessed 2 March 2026]. DOI 10.12775/TMNA.2024.025.