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 | 2004 | |
|---|---|---|
| 1 |      | Joep Crompvoets, Arnold Bregt, Abbas Rajabifard, Ian Williamson: Assessing the worldwide developments of national spatial data clearinghouses. International Journal of Geographical Information Science 18(7): 665-689 (2004) |
| 1 | Arnold Bregt | [1] |
| 2 | Abbas Rajabifard | [1] |
| 3 | Ian Williamson | [1] |