6Thomas, Sarah E. Abundance, attention, and access: of portals and catalogs. [ 2005 - 08 - 08 ]. http://www. arl.org/newsltr/212/portal, html
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8Library nf Congress Portals Applicatinns Issues Group.Functional Requirements for an OpenURL Resolver for the Library of Congress. [ 2005 - 05 - 08 ]. http ://www. loc.gov/catdir/lcpaig/openurl_requirements_20031104.pdf
