A structured academic reference database, cited for entries drawn from a curated scholarly research platform rather than an open web page or a general encyclopedia. Belongs here: a citation to an academic research-database entry, such as a curated author or literary-history profile hosted by a scholarly reference service. Does not belong here: a peer-reviewed journal article or monograph accessed through such a database, tracked as Secondary Scholarship, since the database entry itself and the scholarship it indexes carry different evidentiary weight.