Libor Polčák,
Marek Saloň,
Giorgio Maone,
Radek Hranický, and
Michael McMahon
Brno University of Technnology, Faculty of Information Technology, Božetěchova 2,
612 66 Brno, Czech Republic
Independent researcher, Hackademix
Free Software Foundation, 51 Franklin Street Fifth Floor, MA 02110 Boston,
USA