de Wit, R.J., R.E. Hibbins, P.J. Espy, and N.J. Mitchell (2013), Interannual variability of mesopause zonal winds over Ascension Island: coupling to the stratospheric QBO, J. Geophys. Res., 118 (D21), 12052, doi.org/10.1002/2013JD020203 (pdf)
de Wit, R.J., R.E. Hibbins, P.J. Espy, and N.J. Mitchell (2013), Interannual variability of mesopause zonal winds over Ascension Island: coupling to the stratospheric QBO, J. Geophys. Res., 118 (D21), 12052, doi.org/10.1002/2013JD020203 (pdf)