Changjin Xu and Yusen Wu, Frequency Domain Analysis for Hopf Bifurcation in a Delayed Competitive Web-site Model. journal = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology. March 2015, vol. 98(2). 138 - 141 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/10004338.