Elias Akoury,  Residual Dipolar Couplings in NMR Spectroscopy Using Lanthanide Tags.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2017, vol. 128(8). 362 - 368
    [viewed 19 January 2021]. Available from: https://publications.waset.org/pdf/10007662.