A RuleML Study on Integrating Geographical and Health Information. - Sheng Gao; Darka Mioc; Harold Boley; Francois Anton; Xiaolun Yi (RuleML, 2008)

Geospatial-Enabled RuleML in a Study on Querying Respiratory Disease Information. - Sheng Gao; Harold Boley; Darka Mioc; Francois Anton; Xiaolun Yi (RuleML, 2009)