A reference refPeriod codelist based on ESTAT:CL_REF_PERIOD_DTL(1.0)
"@en ; skos:hasTopConcept sip-sdmx-code:refPeriod-F02 , sip-sdmx-code:refPeriod-F03 , sip-sdmx-code:refPeriod-F11 , sip-sdmx-code:refPeriod-F12 , sip-sdmx-code:refPeriod-C , sip-sdmx-code:refPeriod-F06 , sip-sdmx-code:refPeriod-F07 , sip-sdmx-code:refPeriod-F04 , sip-sdmx-code:refPeriod-F05 , sip-sdmx-code:refPeriod-F08 , sip-sdmx-code:refPeriod-F09 , sip-sdmx-code:refPeriod-F_O , sip-sdmx-code:RefPeriod , sip-sdmx-code:refPeriod-F10 ; skos:notation "CL_REFPERIOD"@en ; skos:prefLabel "Reference period detail codes code list"@en . sip-sdmx-code:RefPeriod a rdfs:Class ; rdfs:isDefinedBy