Diss.--Université--Fribourg, Suisse, 1990.
Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/468156877 |
Date | January 1992 |
Creators | Wetzel, René. |
Publisher | Freiburg : Suisse : Univ.-Verl., |
Source Sets | OCLC |
Language | German |
Detected Language | German |
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