Duration of Copyright Protection
http://www.ala.org/ala/aboutala/offices/wo/woissues/copyrightb/copyrightarticle/durationcopyright.cfm
The Technology, Education and Copyright Harmonization (TEACH) Act
http://www.ala.org/Template.cfm?Section=distanceed&Template=/ContentManagement/ContentDisplay.cfm&ContentID=25939
Copyright and Digital Distance Education
http://www.copyright.gov/disted/
US Copyright Office Library of Congress
http://www.copyright.gov/
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