WASET
    C. T. Cheung and  R. K. P. Ng and  T. Y. Lo and  Zhou Jinyun,  3D Shape Knitting: Loop Alignment on a Surface with Positive Gaussian Curvature.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2016, vol. 111(3). 302 - 307
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/10003756.