search query: @author Praag, B.M.S. van / total: 4
references: 4-4 / 4
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title | year | author | ||
4. |
Economisch Statistische Berichte
1990 : FEB 28, VOL. 75:3747, p. 208-210 |
1990 | Zwart, R. de Praag, B.M.S. van |
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