Takafumi Miyata, Yusaku Yamamoto, Takashi Uneyama, Yoshimasa Nakamura & Shao-Liang Zhang. (1970). Optimization of the Multishift QR Algorithm with Coprocessors for Non-Hermitian Eigenvalue Problems.
            <i>East Asian Journal on Applied Mathematics</i>. <i>1</i> (2).
            187-196.
         doi:10.4208/eajam.300510.250311a