Ivashchenko, E., Omarova, R., & Ospanov, K. (2011). The peculiarities of the spatial structure of Cd(II), Hg(II), In(III), Tl(III), Sn(II) AND Pb(II) metallic salts complex compounds. Chemical Bulletin of Kazakh National University, 64(4), 100-104. https://doi.org/https://doi.org/10.15328/chemb_2011_4100-104