CUI, Yujun; ZOU, Yumei. Existence of solutions for second-order integral boundary value problems. Nonlinear Analysis: Modelling and Control, [S. l.], v. 21, n. 6, p. 828–838, 2016. DOI: 10.15388/NA.2016.6.6. Disponível em: https://www.zurnalai.vu.lt/nonlinear-analysis/article/view/13431. Acesso em: 4 apr. 2025.