If you are working from a reading-list and if you have a reference the first step is to go to Database A-Z and select a bibliographical database. The following databases have material relevant to Bulgarian and Slavonic language and literature. Most of the articles indexed in these databases will be in English and other European languages.
Note: you can only find journal articles in these databases. You will NOT find journal articles in the online library catalogue (unless you do a Journal articles search on SOLO!)