Author	W.-R. Hamann G. Dunnebeil L. Koesterke Werner Schmutz U. Wessolowski
Year of Publication	1991
Journal Title	Astronomy and Astrophysics
Volume	249
Start Page or Article ID	443-454
URL	http://articles.adsabs.harvard.edu/full/1991A\%26A...249..443H
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	Journal Article
Publication Status	Published