00711naa#a2200229#i#450# EN\\bibl\110980 20251226143107.5 3034-4689 20251010b2025####ek#y0engy0150####ca RU ANALYSIS OF THE EFFECTIVENESS OF THE HEAVY OIL SLUDGE HYDROCRACKING PROCESS WHEN MODIFYING COAL ADDITIVES WITH METAL OXIDES Journal article Kazan Kazan National Research Technological University 2025 5 с. Journal article local Antonova Marina Yur'evna Zayceva E. G. Davletshin A R Bashkitseva Natalia Yur'evna vestniktu.ru