STRELNIKOV, D. Boundary triples for integral systems on the half-line. Methods of Functional Analysis and Topology, [S. l.], v. 25, n. 1, p. 84–96, 2019. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/712. Acesso em: 13 dec. 2025.