Document type: Part of book or chapter of book
The different versions of the original document can be found in:
DOIS: 10.11588/artdok.00000160 10.11588/artdok.00004205
Published on 01/01/1992
Volume 1992, 1992
DOI: 10.11588/artdok.00000160
Licence: CC BY-NC-SA license
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