HEATKEYS

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

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IDEAS is a central index of economics and finance research, including working papers, articles and software code

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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.

WIPO, The World Intellectual Property Organization (WIPO) homepage, entry point for information about industrial property and copyright.

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LibraryThing catalogs your books online, easily, quickly and for free.

Quizlet is a lightning fast way to memorize vocabulary lists. It

Twitter is without a doubt the best way to share and discover what is happening right now.