Google Scholar is a freely accessible web search engine that indexes the full text of scholarly literature across an array of publishing formats and disciplines. Released in beta in November 2004, the Google Scholar index includes most peer-reviewed online journals of Europe and...
Google Scholar has no features, suggest some!
- - Google Scholar is the most popular Web-based alternative to Sparrho.
- - Google Scholar is the most popular free alternative to Sparrho.
Scinapse is a free search engine for academic papers. As of September 2018, it indexes more than 200 million articles from more than 40,000 journals.