OGC Definitions Service (Beta)

http://www.opengis.net/def/coordinate-operation/ogc/1.3/

http://www.opengis.net/def/coordinate-operation/ogc/1.3/

unstar this property label http://www.opengis.net/def/coordinate-operation/ogc/1.3/ more like this
star this property is primary topic of &_properties=prefLabel,,sameAs.label,label
unstar this property same as OGC Coordinate Operations 1.3 more like this