Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Caifeng Shan and Shaogang Gong and Peter W. McOwan,Facial expression recognition based on Local Binary Patterns: A comprehensive study,Image and Vision Computing,0262-8856,Elsevier BV,2009-05,27,6,803-816,https://cir.nii.ac.jp/crid/1363388845247118336,https://doi.org/10.1016/j.imavis.2008.08.005