%0 Journal Article %A B. Aniszczyk %A J. Burzyk %A A. Kamiński %T Borel and monotone hierarchies and extension of Rényi probability spaces %J Colloquium Mathematicum %D 1987 %P 9-25 %V 51 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-51-1-9-25/ %R 10.4064/cm-51-1-9-25 %G en %F 10_4064_cm_51_1_9_25