I. Kurashvili and  G. Darsavelidze and  G. Bokuchava and  A. Sichinava and  I. Tabatadze ,  Influence of Boron Doping and Thermal Treatment on Internal Friction of Monocrystalline  Si1-xGex(x≤0,02) Alloys.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2016, vol. 115(7). 854 - 857
    [viewed 14 October 2019]. Available from: https://publications.waset.org/pdf/10004868.