@article{MV_1965_17_1_a4,
     author = {S. Fempl},
     title = {O jednoj {Gr\{\textquotedblright}uss-ovoj} nejednakosti},
     journal = {Matemati\v{c}ki vesnik},
     pages = {33 },
     year = {1965},
     volume = {17},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/MV_1965_17_1_a4/}
}