Gurin, A., M. Burkitbaev, E. Chakrova, Z. Medvedeva, and T. Morozova. “Study of Separation of Isotopes of Lutetium and Ytterbium by Cementation Methods”. Chemical Bulletin of Kazakh National University, Vol. 67, no. 3, Sept. 2012, pp. 124-9, doi:https://doi.org/10.15328/chemb_2012_3124-129.