1- Refereed R-session Papers addressed to these sessions will be refereed by the theme convenors for each thematic topic. .
2 - Refereed Y-session Papers are for Young Scientists. For these sessions, all coauthors of the paper should be less than 33 years old on 25th August 2012. The full papers will be refereed by the convenor of the Young Scientists’ Sessions. All authors will compete for the Epainos Award, which is awarded to the best paper presented in these sessions. .
3 - Ordinary O-session Papers addressed to these sessions are not refereed, but they will be included in the Conference USB stick/pen drive, unless the authors choose otherwise.
4 - Special S-session Papers for these special sessions may be refereed by the special session organiser, if he/she decides to do so.