Monografia (1996) Proceedings of the 2nd EC–GIS workshop : Genova, Italy, 26–28 June 1996 Monografia (1997) Proceedings of the 3rd EC–GIS Workshop : Leuven, Belgium–25–27 June 1997 Monografia (1999) Proceedings of the 4th EC–GIS Workshop : Budapest, Hungary, 24–26 June 1998
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