%0 Journal Article %A B. Kamiński %T Generators of perfect σ-algebras of $Z^{d}$-actions %J Studia Mathematica %D 1991 %P 11-21 %V 99 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm-99-1-11-21/ %R 10.4064/sm-99-1-11-21 %G en %F 10_4064_sm_99_1_11_21