PAIS Index This link opens in a new window1914-present. Contains continually updated records for over half a million journal articles, books, government documents, statistical directories, grey literature, research reports, conference papers, web content, and more. Newspapers and newsletters are not indexed. PAIS International includes publications from over 120 countries throughout the world. In addition to English, some of the indexed materials are published in French, German, Italian, Portuguese, Spanish, and other languages. It is updated quarterly with over 17,000 current records added in total each year.