SERGEJEVA, Natalija. On some problems with nonlocal integral condition. Mathematical Modelling and Analysis, [S. l.], v. 15, n. 1, p. 113–126, 2010. DOI: 10.3846/1392-6292.2010.15.113-126. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/5982. Acesso em: 2 jun. 2025.