CONCLUSIONS Article Zhiltsov S.S., Zonn I.S., Kostianoy A.G., Semenov A.V. Handbook of Environmental Chemistry. Springer Verlag. Vol. 85. 2018. P. 263-275
THE BLACK SEA ENCYCLOPEDIA Monograph Grinevetsky S.R., Zonn I.S., Zhiltsov S.S., Kosarev A.N., Kostianoy A.G. Springer-Verlag GmbH. 2015. 889 p.