Hehn 1971, p. 350, official name of the occupied territory. Hehn, Paul N. (1971). "Serbia, Croatia and Germany 1941–1945: Civil War and Revolution in the Balkans". Canadian Slavonic Papers. 13 (4). University of Alberta: 344–373. doi:10.1080/00085006.1971.11091249. JSTOR40866373.
Hehn 1971, p. 350, official name of the occupied territory. Hehn, Paul N. (1971). "Serbia, Croatia and Germany 1941–1945: Civil War and Revolution in the Balkans". Canadian Slavonic Papers. 13 (4). University of Alberta: 344–373. doi:10.1080/00085006.1971.11091249. JSTOR40866373.
Tomić, Milić, Lazić and Marinković; Psychological Survival in Banjica Concentration Camp due to Inmate Creativity. A Recommendation to Future Victims p. 2; Austin Publishing Group, 2019, [1]