NUDEL'MAN, M. A. On Initial Data of a Simple Conservative Scattering System That Can Be Transferred to Zero by a Sequence of Inputs from l ². Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 57, n. 4, p. 559–563, 2005. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3621. Acesso em: 5 dec. 2025.