Simple-zero and double-zero singularities of a Kaldor-Kalecki model of business cycles with delay. Wu, Xiaoqin P. — 2009 Discrete Dynamics in Nature and Society
Bifurcation analysis of a Kaldor-Kalecki model of business cycle with time delay. Wang, Liancheng; Wu, Xiaoqin P. — 2009 Electronic Journal of Qualitative Theory of Differential Equations [electronic only]