@article{10_4064_fm_57_3_273_274,
     author = {Czes{\l}aw Ryll-Nardzewski},
     title = {On a {Freedman's} problem},
     journal = {Fundamenta Mathematicae},
     pages = {273--274},
     publisher = {mathdoc},
     volume = {57},
     number = {3},
     year = {1965},
     doi = {10.4064/fm-57-3-273-274},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-57-3-273-274/}
}