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@article{NM_2009_LIV_1_a3, author = {Milan \v{Z}ivanovi\'c}, title = {Trouglovi sa celobrojnim stranicama i unutra\v{c}njim uglom od $60^{\circ}$ ($120^{\circ}$)}, journal = {Nastava matematike}, pages = {19 }, publisher = {mathdoc}, volume = {LIV}, number = {1}, year = {2009}, language = {en}, url = {http://geodesic.mathdoc.fr/item/NM_2009_LIV_1_a3/} }
Milan Živanović. Trouglovi sa celobrojnim stranicama i unutračnjim uglom od $60^{\circ}$ ($120^{\circ}$). Nastava matematike, LIV (2009) no. 1, p. 19 . http://geodesic.mathdoc.fr/item/NM_2009_LIV_1_a3/