Thesis--Frankfurt am Main. / Vita. Includes bibliographical references (p. 139-151).
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/569432770 |
| Date | January 1971 |
| Creators | Betz, Wolfgang Peter, |
| Publisher | [S.l. : s.n.], |
| Source Sets | OCLC |
| Language | German |
| Detected Language | English |
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