search query: @author Gelder, J. van / total: 6
references: 5-6 / 6
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title | year | author | ||
5. |
Economisch Statistische Berichte
1986 : FEB 12, VOL. 71:3543, p. 180-182 |
1986 | Gelder, J. van Jong, J. L. M. de |
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6. |
Economisch Statistische Berichte
1984 : JUN 20, VOL. 69:3460, p. 566-568 |
1984 | Gelder, J. van |
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