Kovalchukova, O., Ryabov, M., Obmenennaya, A. and Popandopulo, N. 2018. The Spectroscopic and theoretical investigations of complex formation of (3E,3’E)-7,7’-(carbonylbis(azanediyl))bis(3-(2-(2-hydroxyphenyl)hydrazono)-4-oxo-3,4-dihydronaphthalene-2-sulfonic acid) with metal cations. JOURNAL OF ADVANCES IN CHEMISTRY. 15, 2 (Jul. 2018), 6207–6217. DOI:https://doi.org/10.24297/jac.v15i2.7500.