 |
|
| ISSN 0536-1028 (Print) ISSN 2686-9853 (Online) |
Kseniia K. Ivanova
– mineral processing engineer, Production company “Spirit”. Е-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
This email address is being protected from spambots. You need JavaScript enabled to view it.
Мы индексируемся в:
