An excellent tool for scholarly search for all subjects. Explore related works, citations, authors, and publications. Links to free articles are available.
TRID covers all modes and disciplines of transportation and contains more than 1.1 million records of published research. More than 207,000 records contain links to full-text documents.
[VNU] A multi-disciplinary resource, also containing collections of ebooks
[VNU] 74 journals of Mathematics, Physics, and Chemistry. Access from 1874 - Present.