Meriem Benzarti and  Mohamed Ben Tkaya and  Cyril Pailler Mattei and  Hassan Zahouani,  Hair Mechanical Properties Depending on Age and Origin.   journal   = {International Journal of Biotechnology and Bioengineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2011, vol. 50(2). 66 - 72
    [viewed 18 January 2020]. Available from: https://publications.waset.org/pdf/10295.