@Article{ars-2-265-2004,
AUTHOR = {Bibl, K.},
TITLE = {Sixty years of ionospheric measurements and studies*},
JOURNAL = {Advances in Radio Science},
VOLUME = {2},
YEAR = {2004},
PAGES = {265--268},
URL = {http://www.adv-radio-sci.net/2/265/2004/},
ISSN = {1684-9965}
}