Xue-Zhong He
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Stability for a competitive Lotka-Volterra system with delays
Nonlinear Analysis: Theory, Methods & Applications
On Stability of Immune Protection Model with Regard for Damage of Target Organ: The Degenerate Liapunov Functionals Method
Cybernetics and Systems Analysis
Original article: Observations on evolutionary models with (or without) time lag, and on problematical paradigms
Mathematics and Computers in Simulation