1997/02/27 by Rainald Flume, Flume, Rainald
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/9702192
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arxiv created 1997/02/27 · arxiv updated 2009/11/30
Talk presented at the 9th Max Born Symposion, Karpacz, September 1996