@article{MV_1952_4_3-4_a5,
     author = {\v{C}. V. Stanojevi\'c},
     title = {O jednom sistemu skupovnih jedna\v{c}ina},
     journal = {Matemati\v{c}ki vesnik},
     pages = {39 },
     publisher = {mathdoc},
     volume = {4},
     number = {3-4},
     year = {1952},
     url = {http://geodesic.mathdoc.fr/item/MV_1952_4_3-4_a5/}
}