OPEN ACCESS E-BOOKS

DOAB (Directory of Open Access Books)

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The WordReference Dictionaries - online translation dictionaries

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Dizionari Hoepli

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Cambridge Dictionaries Online

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Your Dictionary

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WebElements - 5500 files relating to the periodic table

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eMolecules : searching the world's chemistry

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The MacTutor History of Mathematics archive

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Convert Auto (convert just about anything automatically )

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Unity of measure

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American patents (USPTO)

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European Patent Office

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PLEIADI (Portal for Italian Electronic scientific literature on open archives and institutiona repositorie)

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E-LIS (e-prints in Library and Information Science)

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ARXIV (archive and e-prints managed by Cornell University, SISSA, National Science of Foundation)

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University of California (e-prints archive in free access)

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CERN documents server (320.000 full text documents)

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E-print network

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NCSTRL: Networked Computer Science Technical Reports Library

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PoS - Proceedings of Science

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MetPublications (Metropolitan Museum of New York)

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Getty Publications Virtual Library

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