@Article{nhess-6-735-2006,
AUTHOR = {Liperovskaya, E. V. and Parrot, M. and Bogdanov, V. V. and Meister, C.-V. and Rodkin, M. V. and Liperovsky, V. A.},
TITLE = {On variations of foF2 and F-spread before strong earthquakes in Japan},
JOURNAL = {Natural Hazards and Earth System Sciences},
VOLUME = {6},
YEAR = {2006},
NUMBER = {5},
PAGES = {735--739},
URL = {https://nhess.copernicus.org/articles/6/735/2006/},
DOI = {10.5194/nhess-6-735-2006}
}