Thesis--Bonn. / Vita. Includes bibliographical references (p. 430-438).
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/609243855 |
| Date | January 1974 |
| Creators | Heuken, Bernhard, |
| Publisher | Bonn : [s.n.], |
| Source Sets | OCLC |
| Language | German |
| Detected Language | Spanish |
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