7American National Standards Institute. ANSI/NISO Z39. 19-2005 Guidelines for the construction,format, and management of monolingual controlled vocabularies[S/OL]. [2007-03-18]. http://www.niso. org/standards/resources/Z39-19-2005.pdf.
8Review of Content Standard ANSI/NISO Z39. 19 - 2005 Guidelines for the Construction, Format, and Management of Monolingual Controlled Vocabularies[EB/OL]. [2007-03-18]. http://hpcrd.lbl. gov/SDM/XMDR/standards/cmaps/Z39. 19. doc.
9Stella G Dextre Clarke. BS8723 advances to encompass interoperability[EB/OL].[2007-03-18]. http://www. ukoln.ac. uk/nkos/nkos2006/presentations/dextre-clarke.ppt.
10The Getty Information Institute. Guidelines for Forming Language Equivalents: A Model Based on the Art & Architecture Thesaurus[EB/OL]. [2007-03-18]. http://www.chin. gc. ca/Resources/Publications/Guidelines/English.