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- Gentechnologie / Ralf Baufeld ... [et al.] - Lichtenau - Göttingen : AOL-Verlag : Die Werkstatt , 1995 - 144 s. ISBN 3-89111-195-9 [1, currently available 1]
- Chapters, articles
- Tropischer Regenwald / Birgitt Aldermann, Angela Franz-Balsen, Henning Heske grafiken Florian Maderspacher - Lichtenau - Göttingen : AOL-Verlag : Die Werkstatt , 1992 - 144 s. ISBN 3-89111-196-7 [1, currently available 1]
- Chapters, articles