Mussabekova, A., A. Shaldybayeva, and M. Abilova. “Modified Coal-Paste Electrode in Voltammetry of Vanadium (V)”. Chemical Bulletin of Kazakh National University, Vol. 65, no. 1, Mar. 2012, pp. 142-4, doi:https://doi.org/10.15328/chemb_2012_1142-144.