The print volumes go back to 1955. It indexes periodical articles in all subject areas from around the world in German, French and English. Zeitschriften literatur mit Einschuss von Sammelwerken. Bibliographie der Fremdsprachigen Zeitschriftenliteratur. European parts of the Byzantine Empire.
Records describe journal articles, conference proceedings, books, book reviews, and dissertations.
Its bibliography will cover all relevant secondary material published since 1700 to the current year. This material will consist of both printed literature and matter in other media. An index to the two following microfiche collections which consist of finding aids, card catalogs, and indexes to individual collections of manuscripts, archives, and other primary source material in repositories of the U.S. and Great Britain. In Orbis, OPAC contains materials from 1977 to the present. For materials published prior to 1977 that do not appear in OPAC, check in the card catalog in Sterling Memorial Library.