Conference Paper
Brkovic, A.; Solanki, S. K.; Rüedi, I.: The quiet-Sun variability as seen by CDS and SUMER. In: Recent Insights into the Physics of the Sun and Heliosphere: Highlights from SOHO and Other Space Missions, pp. 381 - 383 (Eds. Brekke, P.; Fleck, B.; Gurman, J. B.). Astronomical Society of the Pacific, San Francisco, CA, USA (2001)