Physics and Space Engineering

An excellent tool for scholarly search for all subjects. Explore related works, citations, authors, and publications. Links to free articles are available.

A periodical resource on Business, Health and Medical, Language and Literature, Social Sciences, Education, Science and Technology. Login-instruction

Open textbooks are textbooks that have been funded, published, and licensed to be freely used, adapted, and distributed. These books have been reviewed by faculty from a variety of colleges and universities to assess their quality.

A free resource for ebooks, providing thoundsands of academic and peer-reviewed ebooks. Easy for searching and downloading sources.

This is an index of over 2.4 million electronic theses and dissertations (ETDs). The full text of all papers lives on the original hosting site, usually the repository of the university that granted the degree.

Provided by the European Patent Office, Espacenet offers more than 90 million patent documents from the 19th century right up to today.

Provided by The National Office of Intellectual Property of Vietnam. In this web site you can search information on patent, industrial design, trade mark which is published un-examined or is granted.