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@article{MV_1968_20_4_a18, author = {M. R. Taskovi\'c}, title = {Dva problema {Mihaila} {Petrovi\'ca}}, journal = {Matemati\v{c}ki vesnik}, pages = {527 }, publisher = {mathdoc}, volume = {20}, number = {4}, year = {1968}, url = {http://geodesic.mathdoc.fr/item/MV_1968_20_4_a18/} }
M. R. Tasković. Dva problema Mihaila Petrovića. Matematički vesnik, Tome 20 (1968) no. 4, p. 527 . http://geodesic.mathdoc.fr/item/MV_1968_20_4_a18/