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G. A. Isaeva
Perm State University
Russian Federation
Senior Lecturer, Mineralogy and Petrography Department of Geological Faculty
N. E. Moloshtanova
Perm State University
Russian Federation
Cand. Geol.-Min. Sci., Docent, Mineralogy and Petrography Department
E. E. Maleev
ZUMK-Engineering Ltd., 63 Lenina Str., Perm 614068, Russia
Russian Federation
Senior Geologist
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