00733naa#a2200169#i#450# EN\\bibl\126314 20260715182809.3 1994-5655 20260626b2026####ek#y0engy0150####ca RU The Rusinga Copper Factory: an outline of the history of the discovery and mining of copper ore in Russian Lapland in the XVIII century Journal article Syktyvkar FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences" 2026 5 с. Journal article local Всеобщая история. 94 Биографические и подобные исследования. 929 Petrovskiy M. N. komisc.editorum.ru