The main OECD classification is an additional search filter in ERIH PLUS. The OECD-Frascati structure of disciplines can improve the usability of ERIH PLUS data for bibliometric statistics and research purposes.

List of OECD classifications

Arts (Arts, History of Arts, Performing Arts, Music)
Economics and Business
Educational Sciences
History and Archaeology
Languages and Literature
Media and Communications
Other Humanities
Other Social Sciences
Philosophy, Ethics and Religion
Political Science
Social and Economic Geography