JANFADA, M.; MORSHEDI, V. R.; KAMYABI GOL, R. Frame for operators in finite dimensional hilbert space. Tamkang Journal of Mathematics, [S. l.], v. 49, n. 1, p. 35–48, 2018. DOI: 10.5556/j.tkjm.49.2018.2383. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/2383. Acesso em: 19 apr. 2024.