Publisher
Springer Science and Business Media LLC
Subject
Space and Planetary Science,Astronomy and Astrophysics
Reference7 articles.
1. Alfv�n, H. and F�lthammar, C.: 1963, Cosmical Electrodynamics, 2nd ed., Oxford, p. 77.
2. Babcock, H. W.: 1961, Astrophys. J. 133, 572.
3. Godoli, G.: 1966, Observatory 86, 243.
4. Halm, J.: 1922, Monthly Notices Roy. Astron. Soc. 82, 479.
5. Leighton, R. B.: 1964, Astrophys. J. 140, 1547.