Alfred, J., M. Fromm, R. Bevilacqua, G. Nedoluha, A. Strawa, L. R. Poole, and J. Wickert (2007), Observations and analysis of polar stratospheric clouds detected by POAM III and SAGE III during the SOLVE II/VINTERSOL campaign in the 2002/2003 Northern Hemisphere winter, Atmos. Chem. Phys., 7, 2151-2163.