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Zia, L.L.: ¬The NSF National Science, Technology, Engineering, and Mathematics Education Digital Library (NSDL) Program : new projects from fiscal year 2004 (2005)
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Zia, L.L.: new projects and a progress report : ¬The NSF National Science, Technology, Engineering, and Mathematics Education Digital Library (NSDL) program (2001)
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Reitsma, R.; Marshall, B.; Chart, T.: Can intermediary-based science standards crosswalking work? : some evidence from mining the standard alignment tool (SAT) (2012)
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Sutton, S.A.; Golder, D.: Achievement Standards Network (ASN) : an application profile for mapping K-12 educational resources to achievement (2008)
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Davis, L.: Designing a search user interface for a digital library (2006)
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