Preprints are the collection of accepted papers produced prior to a meeting for distribution at the meeting (note that not all Workshops produce preprints). Preprints are provided solely for the meeting participants, normally as part of the registration fee. They may be available for sale, but they must not carry an ISBN, Bar Code, cataloguing details or the words "published by...”Preprints are not a publication and should not have any mark that enables them to be cited as such”.
Preprints can take several forms including print, CD-ROM, DVD-ROM or combinations of these depending on the size of the meeting.
Proceedings are the final collection of papers from an IFAC meeting. They are typically produced after the meeting such that "no-show" papers are deleted. Proceedings are the only way in which papers from IFAC meetings are published.
Proceedings from IFAC meetings are published by IFAC, in cooperation with the IFAC Publisher,on the IFAC PapersOnLine site and will be citable via an ISSN and a DOI (Digital Object Identifier), a unique industry-standard identifier assigned to every paper.
“All publication material submitted for presentation at an IFAC-sponsored meeting (Congress, Symposium, Conference, Workshop) must be original and hence cannot be already published, nor can it be under review elsewhere. The authors take responsibility for the material that has been submitted. IFAC-sponsored conferences will abide by the highest standard of ethical behavior in the review process as explained on the Elsevier webpage (http://www.elsevier.com/journal-authors/author-rights-and-responsibilities), and the authors will abide by the IFAC publication ethics guidelines (http://www.ifac-control.org/events/organizers-guide/PublicationEthicsGuidelines.pdf/view).
Accepted papers that have been presented at an IFAC meeting will be published in the proceedings of the event using the open-access IFAC-PapersOnLine series hosted on ScienceDirect (http://www.sciencedirect.com). To this end, the author(s) must confer the copyright to IFAC when they submit the final version of the paper through the paper submission process. The author(s) retain the right to use a copy of the paper for personal use, internal institutional use at the author(s)’ institution, or scholarly posting at an open web site operated by the author(s) or their institution, limited to noncommercial use. Any other use of the paper requires approval by IFAC.”