Schema for MARC metadata format. MARC semantics available at http://www.loc.gov/marc/ ..... This Schema has been successfully applied for MARC21 records. It is likely to also work for older versions of USMARC and CANMARC. Application of this Schema for other MARC formats has not been tested and may require some adjustments. ..... the Open Archives Initiative. 2000. Herbert Van de Sompel MARC XML transportation format on which this schema is inspired available at http://www.dlib.vt.edu/projects/OAi/marcxml/marcxml.html This Schema validated at http://www.w3.org/2001/03/webdata/xsv on 05-09-2001.