search query: @author Clerx, W.C.G. / total: 1
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| title | year | author | ||
| 1. |
Economisch Statistische Berichte
1990 : NOV 28, VOL. 75:3785, p. 1136-1139 |
1990 | Clerx, W.C.G. Oostroom, H.P.C. van |
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