search query: @author Jong, J. L. M. de / total: 5
references: 5-5 / 5
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| title | year | author | ||
| 5. |
Economisch Statistische Berichte
1985 : MAR 13, VOL. 70:3497, p. 261-263 |
1985 | Jong, J. L. M. de |
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