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University of Colorado Boulder

Find nearly any book: new, used, rare and textbooks. Get the best deal by comparing prices from over 100,000 booksellers.

Wolfram Library Archive has thousands of downloadable resources for Mathematica and other Wolfram products, collected over the full history of Wolfram Research

Leonardo Da Vinci’s Codex Atlanticus goes digital!

Inspiring ideas at Dartmouth for more than 200 years, we're here to offer support for your research, teaching and creative works with extensive collections, expert staff and inspiring environments.

Search through 28M books from the OpenLibrary database (from Internet Archive) with Typesense

Explore hundreds of thousands of digital items from The New York Public Library.

Improve your academic writing with Nature Research Editing Service ✯ English Editing ✯ Scientific Editing ✯ Expert editors in your subject area

IEEE Xplore, delivering full text access to the world's highest quality technical literature in engineering and technology. | IEEE Xplore

A home for the discovery of digitised material and research outputs from the University of Cambridge and beyond

The most complete library of Marxism with content in over 60 languages and the works of over 700 authors readily accessible by archive, sujbect, or history.

Encyclopedia of Jewish and Israeli history, politics and culture, with biographies, statistics, articles and documents on topics from anti-Semitism to Zionism.

Repositorio Educativo de la Comunidad Educativa Española

Communications of the ACM is the leading publication for the computing and information technology fields. Read by computing's leading professionals worldwide, Communications is recognized as the most trusted and knowledgeable source of industry information for today's computing professional. Each month Communications brings its readership of over 90,000 ACM members in-depth coverage of emerging areas of computer science, new trends in information technology, and practical applications. The prestige and unmatched reputation of Communications is built upon a 50-plus-year commitment to high quality editorial content and a steadfast dedication to advancing the arts, sciences, and applications of information technology.

The home of scholarly research, Ingenta Connect is your gateway to the world's most comprehensive collection of academic & professional digital content.

OneSearch: Find and get resources from libraries, archives and museums in Singapore. Books, eJournals, images, AV material, records and papers, physical objects and more from One Search by National Library Board NLB.