Li Zong-Cheng,  Basic Tendency Model in Complete Factor Synergetics of Complex Systems.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2010, vol. 39(3). 529 - 536
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/3962.