1. Planetary wave activity in the polar lower stratosphere;Alexander;Atmos. Chem. Phys.,2010
2. Angell , J. K. L. T. Flynn M. E. Gelman D. Hofmann C. S. Long A. J. Miller S. Zhou 2005 Northern Hemisphere Winter Summary Oltmans , S. http://www.cpc.ncep.noaa.gov/products/stratosphere/winter_bulletins/nh_04-05/
3. Angell , J. K. L. T. Flynn M. E. Gelman D. Hofmann C. S. Long A. J. Miller S. Oltmans S. Zhou 2006 Northern Hemisphere Winter Summary http://www.cpc.ncep.noaa.gov/products/stratosphere/winter_bulletins/nh_05-06/
4. Comparison of D-region Doppler drift winds measured by the SuperDARN Finland HF radar over an annual cycle using the Kiruna VHF meteor radar;Arnold;Ann. Geophys.,2003
5. The preconditioning of major sudden stratospheric warmings;Bancalá;J. Geophys. Res.,2012