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Lupovici, C.: Web crawling : the Bibliothèque Nationale de France experience (2005)
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Lor, P.J.; Britz, J.J.: ¬An ethical perspective on political-economic issues in the long-term preservation of digital heritage (2012)
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Steenbakkers, J.F.: NEDLIB Guidelines for setting up a deposit system for electronic publications (2001)
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Jacobsen, G.: Webarchiving internationally : interoperability in the future? (2007)
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Dzhingo, A.: Russian national bibliography : its present situation (1996)
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