WASET
    Alexander L. Dmitriev and  Sophia A. Bulgakova,  Negative Temperature Dependence of a Gravity - A Reality.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    July 2013, vol. 79(7). 1146 - 1151
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/16455.