@article{Rotanova2003wavelet,
author={Rotanova, N.M. and Bondar, T.N. and Kovalevskaya, E.V.},
title={Wavelet analysis of secular geomagnetic variations},
journal={Russian Journal of Earth Sciences},
publisher={Geophysical Center of the Russian Academy of Sciences},
year={2003},
pages={375-383},
volume={5},
issue={5},
}