WorldCat is a worldwide catalog of books, periodicals, sound recordings, visual materials, and maps held in thousands of libraries, in hundreds of languages.
“NDL Search” is a new search service of National Diet Library, Japan.
This service aims to be an access point from which you can use affluent knowledge from public libraries, archives, museums, institutes of academic research and NDL.
A repository of academic journal articles, conference proceedings and research papers, developed and maintained by the Japan Science and Technology Agency (JSTA).