Heejung Lee and  Hyo-Won Suh,  The Hybrid Knowledge Model for Product Development Management.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2012, vol. 72(12). 1549 - 1552
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/2261.