@article{MV_1969_21_4_a11,
     author = {S. M. Stojanovi\'c},
     title = {O dubliranom sistemu sa razli\v{c}itim elementima},
     journal = {Matemati\v{c}ki vesnik},
     pages = {417 },
     publisher = {mathdoc},
     volume = {21},
     number = {4},
     year = {1969},
     url = {http://geodesic.mathdoc.fr/item/MV_1969_21_4_a11/}
}