@article{MV_1950_2_1-2_a6,
     author = {K. Milo\v{s}evi\'c},
     title = {O jednoj formuli iz teorije redova},
     journal = {Matemati\v{c}ki vesnik},
     pages = {69 },
     publisher = {mathdoc},
     volume = {2},
     number = {1-2},
     year = {1950},
     url = {http://geodesic.mathdoc.fr/item/MV_1950_2_1-2_a6/}
}