It would appear the filename format is "se{three letter month code}{two digit year}.pdf" so there are indeed other issues: https://disa.ukzn.ac.za/sites/defaul

It would appear the filename format is "se{three letter month code}{two digit year}.pdf" so there are indeed other issues: https://disa.ukzn.ac.za/sites/default/files/pdf_files/sejan90.pdf https://disa.ukzn.ac.za/sites/default/files/pdf_files/sejan9... for instance. Publication appears to have been monthly.