@article{MV_1963_15_1-4_a6,
     author = {D. \v{Z}. {\DJ}okovi\'c},
     title = {Hornich's inequality and some generalizations},
     journal = {Matemati\v{c}ki vesnik},
     pages = {33 },
     publisher = {mathdoc},
     volume = {15},
     number = {1-4},
     year = {1963},
     url = {http://geodesic.mathdoc.fr/item/MV_1963_15_1-4_a6/}
}