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Feb 7, 2017 at 20:23 history edited nmtoken CC BY-SA 3.0
corrected spelling
Jun 4, 2013 at 10:43 history edited Ian Turton CC BY-SA 3.0
appended answer 8302 as supplemental
Apr 11, 2011 at 6:09 history tweeted twitter.com/#!/StackGIS/status/57324277594202112
Apr 6, 2011 at 1:55 answer added Senthil timeline score: 3
Apr 6, 2011 at 0:26 history asked Geo CC BY-SA 2.5