Following the IFAC rule, all accepted papers should be presented during the conference.

If your paper is not presented, it is seen as a no-show case.

In this case, as a regular paper, your paper will not be included in the proceedings (IFAC PapersOnLine).

Please find the detailed policy about this through following URL:

https://www.ifac-control.org/Members/juanp/documents/meetings-publications