search query: @author Vrooman, J. C. / total: 3
references: 2-3 / 3
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title | year | author | ||
2. |
Economisch Statistische Berichte
1986 : JAN 8, VOL. 71:3538, p. 36-40 |
1986 | Vrooman, J. C. |
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3. |
Economisch Statistische Berichte
1984 : SEP 12, VOL. 69:3472, p. 852-854 |
1984 | Hessing, D. J. Vrooman, J. C. Braak, H. J. van de |
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