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Hall, J.L.; Bawden, D.: Online retrieval history : how it all began (2011)
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Krems, H.: ¬Das ARK-Online-Projekt der Staatsbibliothek zu Berlin : Online-Sacherschließung für drei Millionen Bände von 1501 bis 1955 (2012)
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Van Acker, W.: Rethinking the architecture of the book : unbinding the spine of Paul Otlet's positivist encyclopaedism (2018)
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