IBR Online (1985-) This link opens in a new windowOfficially titled: Internationale Bibliographie der Rezensionen geistes- und sozialwissenschaftlicher Literatur or International Bibliography of Book Reviews of Scholarly Literature in the Humanities and Social Sciences, contains over 1.3 million entries for book reviews from 1985 onwards. International and interdisciplinary in scope, the reviews have been published primarily in Humanities and Social Science journals. Interface in English or German. For reviews prior to 1985, consult our Classic Catalog to find issues of the bibliography in print. (Search " Internationale Bibliographie der Rezensionen geistes- und sozialwissenschaftlicher Literatur" )