id	domain	url
gi-2586	en.wikipedia.org	http://en.wikipedia.org/wiki/kriging
gi-2586	en.wikipedia.org	http://en.wikipedia.org/wiki/kriging
gi-2586	www.itc.nl	http://www.itc.nl
gi-2586	cran.r-project.org	http://cran.r-project.org/web
gi-2586	cran.r-project.org	http://cran.r-project.org
gi-2586	spatialanalyst.net	http://spatialanalyst.net/book/
gi-2586	www.itc.nl	http://www.itc.nl/~rossiter/teach/r/r_ck.pdf
gi-2586	cran.r-project.org	http://cran.r-project.org/web/views/spatial.html
gi-2586	cran.r-project.org	http://cran.r-project.org/web/views/spatial.html
gi-2586	cran.r-project.org	http://cran.r-project.org
gi-2586	spatial-analyst.net	http://spatial-analyst.net/book
gi-2586	spatial-analyst.net	http://spatial-analyst.net/book