@article{MASLO_1981_31_3_a4,
     author = {Olej\v{c}ek, Vladim{\'\i}r},
     title = {Ultrafilters and {Darboux} property of finitely additive measure},
     journal = {Mathematica slovaca},
     pages = {263--276},
     year = {1981},
     volume = {31},
     number = {3},
     mrnumber = {621917},
     zbl = {0469.28001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1981_31_3_a4/}
}