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...it stored the attribute and locational information in separate files. As a result of this, Tomlinson has become known as the 'father of GIS', particularly fo ===GIS Uncertainties===

...values as a fraction of the square root of sum of squares of their result uncertainties."<ref name="SEDD5.2_19">{{cite web |url=https://www.epa.gov/sites/default/f

...ifficult to arrange. Even when this data was available, there were ethical uncertainties about the extent to which and the ways in which patient rights could be pre