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@article{NM_2009_LIV_2-3_a7, author = {Zoran Kadelburg and Branislav Popovi\'c}, title = {26. {Balkanska} matemati\v{c}ka olimpijada}, journal = {Nastava matematike}, pages = {48 }, publisher = {mathdoc}, volume = {LIV}, number = {2-3}, year = {2009}, language = {en}, url = {http://geodesic.mathdoc.fr/item/NM_2009_LIV_2-3_a7/} }
Zoran Kadelburg; Branislav Popović. 26. Balkanska matematička olimpijada. Nastava matematike, LIV (2009) no. 2-3, p. 48 . http://geodesic.mathdoc.fr/item/NM_2009_LIV_2-3_a7/