1. [Aka89] S.-I. Akasofum, The Dynamic aurora, Sci. Am., 54 (Mai 1989)
2. [AKM] Arbeitskreis Meteore e.V., Postfach 60 01 18, 14401 Potsdam; http://www.meteoros.de
3. [AMS] http://comets.amsmeteors.org/
4. [Astro] www.astrowetter.com
5. [Aurora] http://www.exploratorium.edu/learning_studio/auroras/ ; http://www.meteoros.de ; http://www.geo.mtu.edu/weather/aurora/ ; http://www-pi.physics.uiowa.edu/vis/ ; www.polarimage.fi