%0 Journal Article
%T The aspects of K-index calculation at Russian Geomagnetic Observatories
%A Petrov, V..
%A Krasnoperov, R..
%K Geomagnetic observatories, geomagnetic data, magnetograms, 𝐾-index, 𝐾𝑝-index, 𝐾9 limit
%J Russian Journal of Earth Sciences
%D 2020
%N 20
%P 0
%I Geophysical Center of the Russian Academy of Sciences