IOPscience is an online service for journal content published by IOP Publishing. IOPscience embraces innovative technologies to make it easier for researchers to access scientific, technical and medical content.
The Society for Industrial and Applied Mathematics (SIAM) is a professional association devoted to fostering interactions between mathematics and other scientific and technological communities through membership activities, publication of journals and books, and conferences.
Web of Science Core Collection consists of the Science Citation Index, the Social Sciences Citation Index, the Arts & Humanities Citation Index, and the Conference Proceedings Citation Index.
The Catalog contains records generated since January 1994 and is updated daily, with broad coverage of US Federal publications. An increasing amount of full text is available