Markovic, Radmila [0000-0001-9754-1150] ; Krstic, Vesna [0000-0002-1110-0547] ; Friedrich, Bernd [P:(DE-82)IDM00980] ; Stopic, Srecko [P:(DE-82)IDM03416] ; Stevanovic, Jasmina ; Stevanovic, Zoran ; Marjanovic, Vesna