The design and implementation of SPIRIT: a spatially aware search engine for information retrieval on the Internet.

Ross S. Purves Paul Clough Christopher B. Jones Avi T. Arampatzis Benedicte Bucher David Finch Gaihua Fu Hideo Joho Awase Khirni Syed Subodh Vaid Bisheng Yang The design and implementation of SPIRIT: a spatially aware search engine for information retrieval on the Internet. 717-745 2007 21 International Journal of Geographical Information Science 7 http://dx.doi.org/10.1080/13658810601169840 db/journals/gis/gis21.html#PurvesCJABFFJSVY07