WASET
    Wei Chin and  Wen-Kuang Hsu,  Electrically Conducting Lubricants: Esterified Carbon Nanotubes.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2010, vol. 44(8). 524 - 527
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/4938.