search query: @author De Ven, W. P. M. M. van / total: 1
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| title | year | author | ||
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Economisch Statistische Berichte
1983 : MAY 25, VOL. 68:3406, p. 456-461 |
1983 | Vliet, R. C. J. A. van De Ven, W. P. M. M. van |
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