ROMAN, Svetlana; ŠTIKONAS, Artūras. Linear ODE with nonlocal boundary conditions and Green’s functions for such problems. Lietuvos matematikos rinkinys, [S. l.], v. 51, n. proc. LMS, p. 379–384, 2010. DOI: 10.15388/LMR.2010.14664. Disponível em: https://www.zurnalai.vu.lt/LMR/article/view/14664. Acesso em: 6 nov. 2025.