The W3C references have following format:

W3C <STAGE|TYPE> <CODE>-<YEAR>-<DATE>/<SUFF>

• STAGE - stage of standard (REC, CR, etc.). Optional.
• TYPE - type of standard (NOTE, TR). Optional.
• CODE - code of standard (e.g. html, css, etc.). Mandatory.
• YEAR - year of publication. Optional.
• DATE - date of publication. Optional.
• SUFF - suffix of standard (e.g. fonts, 01, ReportOutcomes etc.). Optional.

Cases:

• W3C <ID> - returns a document with the last document as relation
• W3C <ID>-<YEAR> - returns a document with the last dated document for the year as a relation
• W3C <STAGE|TYPE> <CODE>-<YEAR> - returns the last dated document for the year with specified type or stage
• W3C <STAGE|TYPE> <CODE>-<YEAR>-<DATE> - returns dated document

Stages

• WD - Working Draft
• CRD - Candidate Recommendation Draft
• CR - Candidate Recommendation
• PR - Proposed Recommendation
• PER - Proposed Edited Recommendation
• REC - Recommendation
• SPSD - Superseded Recommendation
• OBSL - Obsolete Recommendation

W3C WD css3-namespace
W3C CRD css-images-3
W3C CR css-box-3
W3C PR did-core
W3C PER SMIL2
W3C REC did-core
W3C SPSD MathML2
W3C OBSL P3P

Type

NOTE - W3C Note

W3C NOTE photo-rdf

Year

Year is a part of the standard code. If year is specified but date is not, the latest version of the standard is assumed.

• W3C css-2018 - returns document with the last dated document for the year as a relation
• W3C NOTE-css-2018 - returns the last dated document for the year with specified type or stage
• W3C NOTE-css-2010-20110512 - returns dated document

Dates

• MMDD - month and day
• YYMMDD - year and month
• YYYYMMDD - year, month and day

W3C NOTE voice-0128
W3C NOTE cgm-970618
W3C REC html32-19970114

Without date the latest version of the standard is assumed.

W3C css

Suffix

W3C WCA-terms/01
W3C 9605-Indexing-Workshop/ReportOutcomes
W3C REC CSS2/fonts