REDDY, G. Controlled 2-Frames in 2-Hilbert Spaces. JOURNAL OF ADVANCES IN MATHEMATICS, [S. l.], v. 10, n. 6, p. 3575–3581, 2015. DOI: 10.24297/jam.v10i6.1677. Disponível em: https://rajpub.com/index.php/jam/article/view/1677. Acesso em: 3 jul. 2024.