Analysis of Permanence and Extinction of Enterprise Cluster Based On Ecology Theory
 L.G. Gu, K. Fang, Ecology Research about Enterprise, Science &
Technology Progress and Policy, (in Chinese) 24 (10) (2007) 119-123.
 H. Zhou, Enterprises cluster co-existence model and stability analysis,
Systems Engineering, (in Chinese) 21 (4) (2003) 32-37.
 B.T. Wang, H.Y. Shu, Research on competition in mobile communications
market: ecological model, Journal of Beijing Union University(Natural
Science Edition), (in Chinese) 20 (2) (2006) 27-30.
 Q. Guo, Competitive strategies in an enterprise: an ecological model,
Contemporary Economic Management, (in Chinese) 27 (2) (2005) 49-52.
 Z. Wang, R.Y. Pan, Analysis to the equilibrium of industrial clusters based
on ecological model, Statistical Thinktank, (in Chinese) 8 (2008) 32-35.
 W.H. Li, F.R. Han, Studies on coordinated evolution laws between industry
populations and imperial analysis, Chinese Journal of Management
Science, (in Chinese) 12 (5) (2004) 137-143.
 R. Zhang, X.S. Qian, Z. Gao, A competitive model of enterprises based
on ecology theory, System Engineering, (in Chinese) 26 (2008) 116-119.
 H.Y. Yi, W. Liu, Identifying the core competitive power of company based
on the model of product population competition, Journal of Management
Sciences, (in Chinese) 20 (3) 2007 16-22.
 M.E. Porter, Cluster and the new economics of competition, Harvard
Business Review, (1998)(November-December) 77-90.
 J.C. Wang, The Space of Innovation-enterprise Cluster and Region
Development, Beijing University Press, Beijing, 2001.
 J. Hou, H.H. Liu, Permanence and asymptotic behavior of the nonautonomous
Lotka-Volterra competitive system with impulses, Journal of
Biomathematics, (in Chinese) 24 (2) (2009) 213-221.
 Z.J. Yao, Permanence and extinction of impulsive Lotka-Volterra system,
Journal of Hangzhou Normal University, (in Chinese) 7 (4) (2009) 246-
 S. Ahmad, I.M. Stamova, Asymptotic stability of an N-dimensional
impulsive competitive system, Nonlinear Anal. Real World Appl, 8 (2007)
 P. Georgescu, I.M. Stamova, An impulsively controlled predator-pest
model with disease in the pest, Nonlinear Anal. Real World Appl, 11
 X.H. Tian, Q.K. Nie, On model construction of enterprises- interactive
relationship from the perspective of business ecosystem, Southern Economics
Journal, (in Chinese) 4 (2006) 50-57.
 H.J. Guo, L.S. Chen, The effect of impulsive harvest on a predator-prey
system with distributed time delay, Nonlinear Science and Numerical
Simulation, 14 (5) (2009) 2301-2309.
 V. Lakshmikantham, D.D. Bainov, P.S. Simeonov, Theory of impulsive
differential equations, Singapore: World Scientific Press, 1989.
 Y.H. Fan, L.L. Wang, Global asymptotical stability of a Logistic model
with feedback control, Nonlinear Anal. Real World Appl, 11 (2010) 2686-