Kouhei Ooi, Yoshinori Mizuno, Tomohiro Sogabe, Yusaku Yamamoto and Shao-Liang Zhang. (2018). Solution of a Nonlinear Eigenvalue Problem Using Signed Singular Values.
East Asian Journal on Applied Mathematics. 7 (4).
799-809.
doi:10.4208/eajam.181016.300517c