1. Geospatial ontology development and semantic analytics;Arpinar,2004
2. Semantic Web Technology Evaluation Center. lsdis.cs.uga.edu/projects/semdis/sweto/.
3. Extracting latent semantic relations from definitions to disambiguate geographic ontologies;Kokla,2002
4. Ontology-based modeling of geospatial information;Bishr,2000
5. SWRL: a semantic web rule language combining OWL and RuleML;Harrocks,2004