@article{Nicolls2012a,
author = "M. J. Nicolls and D. C. Fritts and D. Janches and C. J. Heinselman",
title = "Momentum flux determination using the multi-beam Poker Flat Incoherent Scatter Radar",
year = 2012 ,
journal = "Ann. Geophys.",
volume = 30,
number = 6,
pages = "945-962",
keywords = "amisr, pfisr",
doi = "10.5194/angeo-30-945-2012"
}