@article{Zou2009b,
author = "S. Zou and L. R. Lyons and M. J. Nicolls and C. J. Heinselman and S. B. Mende",
title = "Nightside ionospheric electrodynamics associated with substorms: PFISR and THEMIS ASI observations",
year = 2009 ,
journal = "J. Geophys. Res.",
volume = 114,
keywords = "amisr, pfisr, pfrr",
doi = "10.1029/2009JA014259"
}