Dmitry S. Sitnikov and  Andrey V. Ovchinnikov,  Application of Femtosecond Laser pulses for Nanometer Accuracy Profiling of Quartz and Diamond Substrates and for Multi-Layered Targets and Thin-Film Conductors Processing.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2011, vol. 55(7). 931 - 933
    [viewed 26 January 2020]. Available from: