@article{Senik2016rare, author={Senik, E.. and Vinogradov, M.. and Taranov, R.. and Kozodaev, A.. and Ksenofontov, B.S. and Voropaeva, A..}, title={Rare Earth Metals Leaching from Coal Ash and Theirs Concentration}, journal={Safety in Technosphere}, publisher={INFRA-M Academic Publishing LLC.}, year={2016}, pages={48-55}, volume={5}, issue={1}, }