Li-DanLiao, Guo-FengZhang & XiangWang. (2020). Extrapolation Accelerated PRESB Method for Solving a Class of Block Two-by-Two Linear Systems.
            <i>East Asian Journal on Applied Mathematics</i>. <i>10</i> (3).
            520-531.
         doi:10.4208/eajam.280519.180120