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Author comment for 2000PhDT........21B:

The full text of this thesis is available from the author's home institution, at the URL: http://www.sub.uni-hamburg.de/opus/volltexte/2000/330/html/vbdiss.html


Author comment submitted on 11 June, 2008 by Volker Beckmann Volker.Beckmann@obs.unige.ch)