Han Yu and  Dan C. Marinescu and  Annie S. Wu and  Howard Jay Siegel,  Genetic-Based Planning with Recursive Subgoals.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2008, vol. 18(6). 2269 - 2275
    [viewed 10 May 2024]. Available from: https://publications.waset.org/pdf/13213.