For citations:

Kovalevskii S.V., Moshnikov I.A., Kovalevski V.V. Heat-treated nano-structured shungite rocks and electrophysical properties associated. Nanosystems: Physics, Chemistry, Mathematics. 2018;9(4):468-472. https://doi.org/10.17586/2220-8054-2018-9-4-468-472