Extent: | 55 S. : Ill., graph. Darst. |
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Series: | Schulversuche und Bildungsforschung : Berichte und Materialien. - Mainz : v. Hase & Koehler. - Vol. 33 |
Type of publication: | Book / Working Paper |
Language: | German |
ISBN: | 3-7758-1011-0 |
Source: |
Persistent link: https://www.econbiz.de/10004021223