SJÖGREN, P.; SJÖLIN, P. Convergence properties for the time-dependent Schrödinger equation. Annales Fennici Mathematici, [S. l.], v. 14, n. 1, p. 13–25, 1989. DOI: 10.5186/aasfm.1989.1428. Disponível em: https://afm.journal.fi/article/view/134642. Acesso em: 25 nov. 2024.