Kazantzidis, A. Bais, A.F. Gröbner, J. Herman, J.R. Kazadzis, S. Krotkov, N. Kyrö, E. den Outer, P.N. Garane, K. Görts, P. Lakkala, K. Meleti, C. Slaper, H. Tax, R.B. Turunen, T. Zerefos, C.S., Comparison of satellite-derived UV irradiances with ground-based measurements at four European stations, Journal of Geophysical Research - Atmospheres, (111), 2006, Wiley-Blackwell Publishing Ltd, 2169-897X, 2169-8996