Shwets Igor Ivanovich. Research of coal clay of Dneprovsk lignite basin and development of theoretical bases of their complex processing : к.х.н. : spec.. 02.00.13 - Нафтохімія і вуглехімія : presented. 2006-05-11; popup.evolution: .; The L.M.Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry. – , 0406U002101.

Updated: 2026-10-27