Ping-Fan Dai, Jicheng Li, Jianchao Bai & Liqiang Dong. (2019). Notes on New Error Bounds for Linear  Complementarity Problems of Nekrasov Matrices, $B$-Nekrasov Matrices and $QN$-Matrices.
            <i>Numerical Mathematics: Theory, Methods and Applications</i>. <i>12</i> (4).
            1191-1212.
         doi:10.4208/nmtma.OA-2018-0091