SAPAGOVAS, Mifodijus; ČIUPAILA, Regimantas; JAKUBĖLIENĖ, Kristina; RUTKAUSKAS, Stasys. A new eigenvalue problem for the difference operator with nonlocal conditions. Nonlinear Analysis: Modelling and Control, [S. l.], v. 24, n. 3, p. 462–484, 2019. DOI: 10.15388/NA.2019.3.9. Disponível em: https://www.journals.vu.lt/nonlinear-analysis/article/view/12885.. Acesso em: 27 apr. 2024.