1.
Tatić D, B. Gajić D, S. Stanković R. QR Codes Telling the Story about the History of Niš. DiPP [Internet]. 2015 Sep. 30 [cited 2024 Dec. 4];5:133-9. Available from: https://dipp.math.bas.bg/dipp/article/view/dipp.2015.5.12