@article{NM_2012_LVII_3-4_a5,
     author = {Ljubi\v{s}a Dini\'c},
     title = {Povr\v{s}ina lopte (sfere)},
     journal = {Nastava matematike},
     pages = {44 },
     publisher = {mathdoc},
     volume = {LVII},
     number = {3-4},
     year = {2012},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/NM_2012_LVII_3-4_a5/}
}