{
   description = "Identifier for an authority defining a CRS",
   also = "CRS",
   values = [
      {"epsg", {
         description = "For CRS maintained by the IOGP Geomatics Committee in registry originating from the European Petroleum Survey Group"
      }},
      {"ogc", {
         description = "For CRS defined by the Open Geospatial Consortium"
      }}
   ]
}
