Open Science Research Excellence
Ping Liu and  Yongkun Li,  Analysis of Permanence and Extinction of Enterprise Cluster Based On Ecology Theory.   journal   = {International Journal of Mathematical, Computational, Physical, Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology. August 2011, vol. 56(8). 1305 - 1310[viewed 25 May 2019]. Available from: http://waset.org/publications/5091.