SALEH BALASIM, Mohammad. The inverse of operator matrix A where A≥I and A. Journal of Al-Qadisiyah for Computer Science and Mathematics, [S. l.], v. 3, n. 2, p. 209–221, 2017. Disponível em: https://jqcsm.qu.edu.iq/index.php/journalcm/article/view/290. Acesso em: 19 sep. 2024.