@article{Michell2009a, author = "R. G. Michell and K. A. Lynch and C. J. Heinselman and H. C. Stenbaek-Nielsen", title = "High time resolution PFISR and optical observations of naturally enhanced ion acoustic lines", year = 2009 , journal = "Ann. Geophys.", volume = 27, number = 4, pages = "1457-1467", keywords = "amisr, pfisr, pfrr", doi = "10.5194/angeo-27-1457-2009" }