Kairbekov, Z., Eshova, Z., Aubakirov, E., Daiynova, A., Alihanova, A. and Bashirbaeva, R. 2011. Humic acids – catalysts regenerative reactions of modelling systems. Chemical Bulletin of Kazakh National University. 64, 4 (Dec. 2011), 117-120. DOI:https://doi.org/https://doi.org/10.15328/chemb_2011_4117-120.