Newman, P.A., L.R. Lait, M.R. Schoeberl, M. Seablom, L. Coy, R. Rood, R. Swinbank, M. Proffitt, M. Loewenstein, J.R. Podolske, J.W. Elkins, C.R. Webster, R.D. May, D.W. Fahey, G.S. Dutton, and K.R. Chan (1996), Measurements of polar vortex air in the midlatitudes, J. Geophys. Res., 101, 12,879-12.
