Search engine for scholary literature. You are able to search across desciplines and sources.
Free full article access to the most cited and most requested journal articles and patent families in chemistry.
A freely available and permanent web archive and distribution medium for research articles in the field of chemistry
A worldwide directory of library homepages. Possibility to search for about 18,000 libraries or browse by country
The Library of Congress is recognized as the national library of the United States. Its collections (> 29 million books, 120 million other items as newspapers, maps, movies, ...) comprise the world's most comprehensive record of human creativity and knowledge. An easy or advanced search form for titles and authors of books is available.
WORLDCAT is the world's largest library holdings database, covering more than 55,000 libraries from 110 countries. It provides more than 68 million bibliographic records with more than 1,000 million library location listings. [STN database summary sheet]
An on-line document delivery service with a large (> 20,7 million articles starting from 1988, > 30,000 journals) database. Possibility to search free of charge on keywords (in title or abstract), authors and to browse by journal title.
Searchable index that contains article level information from more than 20,000 research journals, in all subjects, and over 100,000 conference proceedings.
Provides access to full-text items from virtually any publication within or outside of the ISI database.
A broker service for delivery of documents (nearly 150,000 journal titles are available).