@article{Sumaruk2011geomagnetic,
author={Sumaruk, Y.P. and Starostenko, V.I. and Legostaeva, O.V.},
title={Geomagnetic observatories of Ukraine in the Global Network INTERMAGNET},
journal={Russian Journal of Earth Sciences},
publisher={Geophysical Center of the Russian Academy of Sciences},
year={2011},
pages={1-12},
volume={12},
issue={2},
}