Y.Nakamura, K.Kajiwara and H.Shiotani: "On au Integrable Discretization of the Ragleigh Quotient Gradient System and the Power Method with a Shift" Journal of Computational and Applied Mathematics. 96. 77-90 (1998)

Y.Nakamura、K.Kajiwara 和 H.Shiotani：“On au Integrable Discretization of the Ragleigh Quotient Gradient System and the Power Method with a Shift”计算与应用数学杂志。