@Article{angeo-33-31-2015,
AUTHOR = {Kotz\'e, P. B.},
TITLE = {Spectrum analysis of short-period K index behaviour at high and mid-latitudes},
JOURNAL = {Annales Geophysicae},
VOLUME = {33},
YEAR = {2015},
NUMBER = {1},
PAGES = {31--37},
URL = {https://angeo.copernicus.org/articles/33/31/2015/},
DOI = {10.5194/angeo-33-31-2015}
}