HEATKEYS

Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.

Free online thesaurus by Babylon. Find synonyms and hyponyms to phrase your ideas better

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Prezi is the zooming presentation editor

Choose from more than 100 million new & used books, used textbooks, and rare, out-of-print books from over 8,000 independent book stores around the world.

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