Submitted documents must be in PDF format only. Please search for free utilities to convert other formats to PDF. Avoid filenames with non-latin characters as this can cause problems with some browsers. It is best to use the upload submission method, but if the submission is over 10MB you can provide a hyperlink. This must be a direct link to the PDF ending in '.pdf'.
Some people are reporting problems uploading files when using certain language setting. If you experience this problem and cannot resolve it please send an email to firstname.lastname@example.org with your paper attached giving all entries you used on the form. We will then upload it on your behalf.