@article{AUPO_1971__11_1_a13,
     author = {Vor\'a\v{c}ek, Jan},
     title = {Note on the paper [1] of {S.} {S\k{e}dziwy}},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {157--161},
     publisher = {mathdoc},
     volume = {11},
     number = {1},
     year = {1971},
     mrnumber = {0320439},
     zbl = {0293.34055},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_1971__11_1_a13/}
}