RANGE –KERNEL ORTHOGONALITY OF ELEMENTARY CHORDAL TRANSFORM. Al-Nahrain Journal of Science, [S. l.], v. 10, n. 2, p. 149–153, 2018. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/1459. Acesso em: 5 apr. 2025.