%0 Journal Article %A S. O. Speranskii %T Quantification over propositional formulas in probability logic: decidability issues %J Algebra i logika %D 2011 %P 533-546 %V 50 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_2011_50_4_a5/ %G ru %F AL_2011_50_4_a5