Conference Paper
Danilovic, S.; Solanki, S. K.; Livingston, W.; Krivova, N. A.; Vince, I.: Magnetic source of the solar cycle variation of the Mn I 539.4 nm line. In: Modern solar facilities-Advanced Solar Science, pp. 189 - 192 (Eds. Kneer, F.; Puschmann, K. G.; Wittmann, A. D.). Universitätsverlag Göttingen, Göttingen (2007)