search query: @author Vaan, C. de / total: 1
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title | year | author | ||
1. |
Economisch Statistische Berichte
1988 : AUG 17, VOL. 73:3669, p. 756-759 |
1988 | Smeehuijzen, J. Vaan, C. de Vingerhoets, J. |
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