SMIRNOV, Sergey. Existence of multiple positive solutions for a third-order boundary value problem with nonlocal conditions. Nonlinear Analysis: Modelling and Control, [S. l.], v. 28, n. 3, p. 597–612, 2023. DOI: 10.15388/namc.2023.28.32123. Disponível em: https://www.zurnalai.vu.lt/nonlinear-analysis/article/view/32123. Acesso em: 24 may. 2025.