- CSB - MetaPress - Google - Bing - Yahoo
 | 2004 | |
|---|---|---|
| 1 |      | Harlan Onsrud, Gilberto Câmara, James Campbell, Narnindi Sharad Chakravarthy: Public Commons of Geographic Data: Research and Development Challenges. GIScience 2004: 223-238 |
| 1 | Gilberto Câmara | [1] |
| 2 | James Campbell | [1] |
| 3 | Harlan Onsrud | [1] |