Min-Li Zeng, Guo-Feng Zhang & Zhong Zheng. (2019). Generalized Augmented Lagrangian-SOR Iteration Method for Saddle-Point Systems Arising from Distributed Control Problems.
            <i>Journal of Computational Mathematics</i>. <i>34</i> (2).
            174-185.
         doi:10.4208/jcm.1511-m2015-0297