S. ZEB, M. YOUSAF. Numerical Solution of Symmetric Saddle Point Problems by Updating Procedure using QR Householder Factorization. Sindh. Uni. Res. J. SS [Internet]. 2016Sep.21 [cited 2026Jun.27];48(3). Available from: https://sujo.usindh.edu.pk/index.php/SURJ/article/view/5009