1. Benz, A. O. et al.: 1994, Solar Phys. 153,33.
2. Cash, W.: 1979, Astrophys. J.
228, 939.
3. Dennis, B.: 1985, Solar Phys. 100, 465.
4. Eadie, W. T., Drijard, D., James, F. E., Roos, M., Sadoulet, B.: 1971, Statistical Methods in Experimental Physics, Elsevier Science Pubi., Amsterdam.
5. Fivian M., Hemmeck, R., Mchedlishvili, A., and Zehnder, A.: 2002, Solar Phys.,this volume.