Translate: Установление экономически оптимального содержания органического вещества в сланце, перерабатываемом в туннельных печах и шахтных генераторах
D. T. Kuznetsov et al. (1956), Proceedings of the Academy of Sciences of the Estonian SSR. Social Sciences Series. Translate the Russian original (23-page PDF) into English in SovietRxiv's format; two agent-assisted reviewers check it against the scan.
Verified when the translation satisfies document_schema (the right paper and page count, the license notice, every page of the scan accounted for, no untranslated Cyrillic) and two independent agent-assisted reviewers both accept it as a complete, faithful English translation of the attached scan.