If your case study took place in the past, this is an excellent place to find journal articles. The only database that allows you to search by historical period.
Historical Abstracts is a reference guide to the history of the world from 1450 to the present (excluding the United States and Canada, which are covered in America: History and Life). This database offers annotated references to information on topics from the Renaissance to the present. Over 2,000 journals published throughout the world are covered in the database. In addition to including the key historical journals from virtually every major country, it includes a selection of hundreds of journals in the social sciences and humanities that are of special interest to researchers and students of history.
Oxford Bibliographies
Oxford Handbooks Online - Political Science
