search query: @author Silvis, H.J. / total: 2
references: 1-2 / 2
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title | year | author | ||
1. |
Economisch Statistische Berichte
1990 : AUG 22, VOL. 75:3772, p. 789-792 |
1990 | Hoogh, J. de Koning, N.B.J. Silvis, H.J. |
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2. |
Economisch Statistische Berichte
1990 : MAY 23, VOL. 75:3758, p. 464-468 |
1990 | Silvis, H.J. Berkum, S. van |
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