@article{bwmeta1.element.bwnjournal-article-fmv57i1p20bwm,
author = {Czes\l aw Ryll-Nardzewski},
title = {On a Freedman's problem},
journal = {Fundamenta Mathematicae},
volume = {57},
year = {1965},
pages = {273-274},
zbl = {0152.21402},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-fmv57i1p20bwm}
}
Ryll-Nardzewski, Czesław. On a Freedman's problem. Fundamenta Mathematicae, Tome 57 (1965) pp. 273-274. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-fmv57i1p20bwm/