By Ishikawa Toru   Barnston Anthony G.   Kastens Kim A.   Louchouarn Patrick   Ropelewski Chester F.   in Cartography and Geographic Information Science

ISSN:1545-0465|32|1|3-16

Cartography and Geographic Information Society‎(2005)‎

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By Kastens Kim   Agrawal Shruti   Liben Lynn   in International Journal of Science Education

ISSN:1464-5289|31|3|365-393

Routledge Ltd‎(2009)‎

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