Lelli, L., Kokhanovsky, A. A., Rozanov, V. V., Vountas, M., Sayer, A. M., and Burrows, J. P.: Seven years of global retrieval of cloud properties using space–borne data of GOME, Atmos. Meas. Tech., 5, 1551–1570, doi:10.5194/amt-5-1551-2012, 2012.