@article{MV_1976_28_1_a14,
     author = {A. Torga\v{s}ev},
     title = {O numeri\v{c}kom rangu operatora u normiranom prostoru},
     journal = {Matemati\v{c}ki vesnik},
     pages = {118 },
     publisher = {mathdoc},
     volume = {28},
     number = {1},
     year = {1976},
     url = {http://geodesic.mathdoc.fr/item/MV_1976_28_1_a14/}
}