B. K. Yadav and  A. Gandhi and  A. K. Verma and  T. S. Rao and  A. Saraswat and  E. R. Kumar and  M. Sarkar and  K. N. Vyas ,  Conceptual Design of Experimental Helium Cooling Loop for Indian TBM R&D Experiments.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    February 2014, vol. 86(2). 354 - 358
    [viewed 25 February 2020]. Available from: https://publications.waset.org/pdf/9997588.