On Multicorns and unicorns I: Antiholomorphic Dynamics, Hyperbolic Components and Real cubic Polynomials. - Shizuo Nakane; Dierk Schleicher (Int. J. Bifurc. Chaos, 2003)

Dynamics of a Family of Quadratic Maps in the Quaternion Space. - Shizuo Nakane (Int. J. Bifurc. Chaos, 2005)