Co-Authors can request invitation letter as presenter or listener.
For co-author presenters: The authors whose papers are accepted for the conference can request an invitation letter for conference participation.
For co-author listeners: Visit conference web site and register as listener to get an invitation letter. Upon confirmation of your conference registration, an invitation letter will be issued on the name of account owner.
Invitation letter is issued on the name of account owner. Request for other people (co-author, accompanying people, supervisor, mentor) are not considered at all.
Invitation letters are confirmed upon receipt of documents.