search query: @author Steffen, L. / total: 1
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| title | year | author | ||
| 1. |
Unternehmer Magazin
1999 : VOL. 47:11, p. 4-16 |
1999 | Steffen, L. |
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| title | year | author | ||
| 1. |
Unternehmer Magazin
1999 : VOL. 47:11, p. 4-16 |
1999 | Steffen, L. |