"2014-10-23" . . "DataSets/DataSet/Units/Unit/Gathering/SiteCoordinateSets/SiteCoordinates/GeoreferenceSources" . . . "A list (concatenated and separated) of maps, gazetteers, or other resources used to georeference the Location, described specifically enough to allow anyone in the future to use the same resources."@en . . "The recommended best practice is to separate the values with a vertical bar (' | '). Examples: \"GeoLocate\", \"USGS 1:24000 Florence Montana Quad | Terrametrics 2008 on Google Earth\"."@en . "2008-11-19" . "Georeference Sources"@en . "recommended" . . .