search query: @author Freimann, J. / total: 4
references: 4-4 / 4
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| title | year | author | ||
| 4. |
UWF-Umweltwirtschaftsforum
1996 : JUN, VOL. 4:2, p. 68-71 |
1996 | Freimann, J. Liesegang, D. G. Pfriem, R. |
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