Google Launches Scholar Beta
Stand on the shoulders of giants' is what Google claims its new service allows you to do. Google Scholar enables you to search specifically for scholarly literature, including peer-reviewed papers, theses, books, preprints, abstracts and technical reports from all broad areas of research.
Use Google Scholar to find articles from a wide variety of academic publishers, professional societies, preprint repositories and universities, as well as scholarly articles available across the web
I was looking for articles about Universe Expansion and really the results are really relevant and give you details of the publication date, author(s), and the source of the article. This already give important informations before reading the article itself.
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