search query: @author Hermkens, P. L. J. / total: 2
references: 1-2 / 2
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title | year | author | ||
1. |
Economisch Statistische Berichte
1989 : JUL 19, VOL. 74:3716, p. 702-704 |
1989 | Wijngaarden, P. J. van Hermkens, P. L. J. |
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2. |
Economisch Statistische Berichte
1989 : JUL 19, VOL. 74:3716, p. 702-704 |
1989 | Wijngaarden, P. J. van Hermkens, P. L. J. |
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