72 20160222141711.0 SIDCimport-75 Gissot, S. 2003 Extracting the apparent motion from two successive EIT images Solar variability as an input to the Earth's environment. International Solar Cycle Studies (ISCS) Symposium, 23 - 28 June 2003, Tatransk Hochedez, J.-F. Dibos, F. Brajsa, R. Jacques, L. Berghmans, D. Zhukov, A.N. Clette, F. Woehl, H. Antoine, J.-P. ESA SP Series 535 2003 853-856 http://cdsads.u-strasbg.fr/cgi-bin/nph-iarticle_query?2003iscs.symp..853G&data_type=PDF_HIGH&type=PRINTER&filetype=.pdf published in NONREF