Guojia Ma and  Guoqiang Lin and  Shuili Gong and  Gang Sun and  Dawang Wang,  The Influence of Substrate Bias on the Mechanical Properties of a W- and S-containing DLC-based Solid-lubricant Film.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2012, vol. 68(8). 718 - 721
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/3529.