@article{PMFA_2019_64_3_a1,
     author = {Obdr\v{z}\'alek, Jan},
     title = {Kilogram i bez {S\`evres}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {139--144},
     year = {2019},
     volume = {64},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2019_64_3_a1/}
}