@Article{angeo-24-887-2006,
AUTHOR = {Voiculescu, M. and Aikio, A. T. and Nygr\'en, T. and Ruohoniemi, J. M.},
TITLE = {IMF effect on sporadic-E layers at two northern polar cap sites: Part I – Statistical study},
JOURNAL = {Annales Geophysicae},
VOLUME = {24},
YEAR = {2006},
NUMBER = {3},
PAGES = {887--900},
URL = {https://angeo.copernicus.org/articles/24/887/2006/},
DOI = {10.5194/angeo-24-887-2006}
}