Ulrich's Periodicals Directory
Ulrich's Periodicals Directory is a bibliographic database providing detailed, comprehensive, and authoritative information on serials published throughout the world. It covers all subjects, and includes publications that are published regularly or irregularly and are circulated free of charge or by paid subscription.
Updated weekly, the database is searchable and browsable by title, subject, language, electronic availability and more. There is also a news section, and links to libraries and interest groups.