MLA indexes critical scholarship on literature, language, linguistics, folklore and film. Coverage includes journal articles, series, monographs, dissertations, bibliographies, proceedings and other materials. The database includes all records indexed from 1923 to the present, approximately 1,700,000 records, and is updated ten times a year.
Free web resource that covers math’s main disciplines and sub-categories, with a collection of math formulae
MEDLINE is the U.S. National Library of Medicine® (NLM) premier bibliographic database that contains more than 25 million references to journal articles in life sciences with a concentration on biomedicine. A distinctive feature of MEDLINE is that the records are indexed with NLM Medical Subject Headings (MeSH®).