NASA - National Aeronautics and Space Administration

Salawitch, R., S. C. Wofsy, E. Gottlieb, L. R. Lait, P. Newman, M. R. Schoeberl, M. Loewenstein, J. Podolske, S. Strahan, M. Proffitt, C. R. Webster, R. May, D. Fahey, D. Baumgardner, J. E. Dye, J. Wilson, K. Kelly, J. W. Elkins, R. Chan, and J. Anderson (1993), Chemical Loss of Ozone in the Arctic Polar Vortex in the Winter of 1991-1992, Science, 261, 1146-1149.