Tang , BoHuang , Yunqing and Dong , Ning. (2018). Doubling Algorithm for Nonsymmetric Algebraic Riccati Equations Based on a Generalized Transformation.
            <i>Advances in Applied Mathematics and Mechanics</i>. <i>10</i> (6).
            1327-1343.
         doi:10.4208/aamm.OA-2018-0012