2012: IV Colloquia Orphica w Nieborowie, 3-6.10.2012; wystąpienie: So what for the monument, if my monument are sounds of the lyre - lyre of Orpheus...”(J. J. Rojek). Several iconographical remarks on the Stella of Orpheus in Ptuj, Slovenia
[2012: National Conference on Orphism IV Colloquia Orphica in Nieborów, Poland; 3rd - 6th October 2012; presentation: So what for the monument, if my monument are sounds of the lyre - lyre of Orpheus...”(J. J. Rojek). Several iconographical remarks on the Stella of Orpheus in Ptuj, Slovenia]