Eys94.rar

Look at the reference list of the source document you pulled this from to see if "EYS94" is listed as a short-hand citation.

In many student psychology documents and course notes, the citation [EYS94] or [CITATION Eys94] is used to reference the widely used cognitive psychology textbook by Michael W. Eysenck (specifically editions published around 1994). eys94.rar

University students and professors often compress lecture notes, PDFs, or scanned book chapters into .rar files and name them using the author's initials and publication year (e.g., Ey senck, 19 94 ). Look at the reference list of the source

If this is a specific local file or course file you encountered, the name likely stems from one of the following conventions: eys94.rar

Look at the webpage, syllabus, or folder where you saw this filename mentioned to see if there is an author list nearby.