Shul'gin Sergej Konstantinovich. Automation of control ash content is in froth flotation of coal : к.т.н. : spec.. 05.13.07 - Автоматизація процесів керування : presented. 2010-06-03; popup.evolution: .; The state higher educational institution " Donetsk National Technical University". – , 0410U005274.

Updated: 2026-11-07