GCP GCP urn:ogc:def:crs:EPSG::6668 pos Point fid fid String lfSpanFr lfSpanFr|timePosition String lfSpanTo lfSpanTo|timePosition String devDate devDate|timePosition String orgGILvl orgGILvl String orgMDId orgMDId String vis vis String advNo advNo String orgName orgName String type type String gcpClass gcpClass String gcpCode gcpCode String name name String B B Real L L Real alti alti Real altiAcc altiAcc Integer