@article{MV_1959_11_1_a16,
     author = {M. S. Popadi\'c},
     title = {O aksiomama za prirodne brojeve},
     journal = {Matemati\v{c}ki vesnik},
     pages = {99 },
     year = {1959},
     volume = {11},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/MV_1959_11_1_a16/}
}