00613naa#a2200157#i#450# EN\\bibl\86344 20260312110321.4 2712-7761 20240812b2024####ek#y0engy0150####ca RU The 16th Russian seminar "Technological mineralogy: comprehensive assessment of non-conventional types of mineral raw materials and their rational use" Journal article Syktyvkar FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences" 2024 0 с. Journal article local Kovalchuk N. S. ras.editorum.ru