00650naa#a2200181#i#450# EN\\bibl\97380 20250517090023.6 2686-9896 20250428b2025####ek#y0engy0150####ca RU PRODUCTION OF HUMIC ACIDS FROM HIGHLY OXIDIZED COALS Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2025 1 с. Journal article local Органическая химия. 547 Dobryshkina Ksenia Alexandrovna Sosnovskaya Nina Gennad'evna angtu.editorum.ru