search query: @author Helbig, Dieter / total: 1
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| title | year | author | ||
| 1. |
BG
1993 : 10, p. 606-608 |
1993 | Pangert, Roland Helbig, Dieter |
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| title | year | author | ||
| 1. |
BG
1993 : 10, p. 606-608 |
1993 | Pangert, Roland Helbig, Dieter |