search query: @author Haack, W.G.C.M. / total: 1
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title | year | author | ||
1. |
Economisch Statistische Berichte
1990 : OCT 24, VOL. 75:3780, p. 988-991 |
1990 | Haack, W.G.C.M. Jong, E. de Moers, L.A.M. |
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