search query: @author Helbling, C. / total: 2
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title | year | author | ||
2. |
Unternehmung
1989 : MAY, VOL. 43:3, p. 173-182 |
1989 | Helbling, C. |
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title | year | author | ||
2. |
Unternehmung
1989 : MAY, VOL. 43:3, p. 173-182 |
1989 | Helbling, C. |