@article{MV_1970_22_3_a6,
     author = {S. B. Pre\v{s}i\'c},
     title = {Op\v{s}ta grupna funkcionalna jedna\v{c}ina},
     journal = {Matemati\v{c}ki vesnik},
     pages = {317 },
     publisher = {mathdoc},
     volume = {22},
     number = {3},
     year = {1970},
     url = {http://geodesic.mathdoc.fr/item/MV_1970_22_3_a6/}
}