%0 Journal Article %A de Simone, Anna %A Pták, Pavel %T Group-valued measures on coarse-grained quantum logics %J Czechoslovak Mathematical Journal %D 2007 %P 737-746 %V 57 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMJ_2007__57_2_a15/ %G en %F CMJ_2007__57_2_a15