@article{MV_1964_16_1_a11,
     author = {D. \v{Z}. {\DJ}okovi\'c},
     title = {On {Tchebychef's} inequality},
     journal = {Matemati\v{c}ki vesnik},
     pages = {52 },
     publisher = {mathdoc},
     volume = {16},
     number = {1},
     year = {1964},
     url = {http://geodesic.mathdoc.fr/item/MV_1964_16_1_a11/}
}