Süha Yılmaz and  Melih Turgut,  Some Characterizations of Isotropic Curves In the Euclidean Space.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2008, vol. 19(7). 489 - 491
    [viewed 24 May 2022]. Available from: https://publications.waset.org/pdf/1544.