"Report on the collision to British Airways Trident, G-AWZT and Inex Adria DC9, YU-AJR, in the Zagreb area, Yugoslavia, 10 September 1976" PDF (v angleščini), 1977, str. 1.
"Report on the collision to British Airways Trident, G-AWZT and Inex Adria DC9, YU-AJR, in the Zagreb area, Yugoslavia, 10 September 1976" PDF (v angleščini), 1977, str. 6–9.
"Report on the collision to British Airways Trident, G-AWZT and Inex Adria DC9, YU-AJR, in the Zagreb area, Yugoslavia, 10 September 1976" PDF (v angleščini), 1977, str. 2.
"Report on the collision to British Airways Trident, G-AWZT and Inex Adria DC9, YU-AJR, in the Zagreb area, Yugoslavia, 10 September 1976" PDF (v angleščini), 1977, str. 10–11.