The complete Postscript Version of this paper is also available locally. However to conserve disk space this version might be "staged" to tape.
N.B. You can find the full abstact of quant-ph/9610004 at the arXiv Preprint server. - (German mirror).
The complete Postscript Version of this paper is also available locally. However to conserve disk space this version might be "staged" to tape.
N.B. You can find the full abstact of quant-ph/9610030 at the arXiv Preprint server. - (German mirror).
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Martin Köhler, 04. November 1997.