@article{Livneh2009a, author = "D. J. Livneh and I. Seker and F. T. Djuth and J. D. Mathews", title = "Omnipresent vertically coherent fluctuations in the ionosphere with a possible worldwide-midlatitude extent", year = 2009 , journal = "J. Geophys. Res.", volume = 114, keywords = "amisr, pfisr", doi = "10.1029/2008JA013999" }