@article{Sparks2009a,
author = "J. J. Sparks and D. Janches",
title = "Latitudinal dependence of the variability of the micrometeor altitude distribution",
year = 2009 ,
journal = "Geophys. Res. Lett.",
volume = 36,
keywords = "amisr, pfisr",
doi = "10.1029/2009GL038485"
}