%0 Journal Article %A Grzegorek, Edward %T $c$-Luzin sets, nonatomic $\sigma$-fields and $\sigma$-independent sets %J Acta Universitatis Carolinae. Mathematica et Physica %D 2007 %P 49-53 %V 48 %N 2 %I mathdoc %U https://geodesic-test.mathdoc.fr/item/AUCMP_2007__48_2_a5/ %G en %F AUCMP_2007__48_2_a5