4[1]Owen D. Ambur. Freedom's Just Another Word...for Metadata: Knowledge Management and Discovery via DASL, Z39.50, X.500, and the DMA. http://computer.org/proceedings/meta/1999/papers/85/oambur.html
8[15]IEEE metadata主页．http://www.llnl.gov/liv_comp/metadata/metadata.html16 Carl Lagoze．Accommodating Simplicity and Complexity in Metadata:Lessons from the Dublin Core Experience．http://www.ncstrl.org/Dienst/Ul/1.0/Display/ncstrl.comell/TR2000-1801
9[16]Riscilla Caplan．International Metadata Initiatives:Lessons in Bibliographic Control．http://lcweb.loc.gov/catdir/bibcontrol/caplan paper.html.
