WASET
	@article{(Open Science Index):https://publications.waset.org/pdf/11767,
	  title     = {Dynamics of a Discrete Three Species Food Chain System},
	  author    = {Kejun Zhuang and  Zhaohui Wen},
	  country	= {},
	  institution	= {},
	  abstract     = {The main purpose of this paper is to investigate a discrete time three–species food chain system with ratio dependence. By employing coincidence degree theory and analysis techniques, sufficient conditions for existence of periodic solutions are established.
},
	    journal   = {International Journal of Mathematical and Computational Sciences},
	  volume    = {5},
	  number    = {3},
	  year      = {2011},
	  pages     = {260 - 262},
	  ee        = {https://publications.waset.org/pdf/11767},
	  url   	= {https://publications.waset.org/vol/51},
	  bibsource = {https://publications.waset.org/},
	  issn  	= {eISSN: 1307-6892},
	  publisher = {World Academy of Science, Engineering and Technology},
	  index 	= {Open Science Index 51, 2011},
	}