1. Atkinson , R. and Fitzke , J. , 2002 . Web Gazetteer Service , OGC Implementation Specification [online]. Available from: https://portal.opengeospatial.org/files/?artifact_id=7175 (Accessed 9 August, 2007) .
2. Baader , F. , et al. 2005 . Integrating description logics and action formalisms for reasoning about web services . Technical report LTCS-05-02 [online]. Available from: http://lat.inf.tu-dresden.de/research/reports.html (Accessed 28 February 2008) .
3. Berners-Lee , T. , Hendler , J. and Lassila , O. , 2001 . The semantic web . Scientific American , 2001 , May , 29 – 37 .
4. Berman , F. , 2007 . SBE/CISE Workshop on Cyberinfrastructure for the Social Sciences [online] . Available from: http://vis.sdsc.edu/sbe/SBE-CISE_Workshop_Intro.pdf ( Accessed 9August 2007) .