de Wit, R.J., R.E. Hibbins, P.J. Espy, and E.A. Hennum (2015), Coupling in the middle atmosphere related to the 2013 major Sudden Stratospheric Warming, Ann. Geophys., 33(3), 309-319, doi.org/10.5194/angeo-33-309-2015 (pdf)
de Wit, R.J., R.E. Hibbins, P.J. Espy, and E.A. Hennum (2015), Coupling in the middle atmosphere related to the 2013 major Sudden Stratospheric Warming, Ann. Geophys., 33(3), 309-319, doi.org/10.5194/angeo-33-309-2015 (pdf)