%0 Journal Article %A S. S. Goncharov %A R. Downey %A D. Hirschfeldt %T Degree Spectra of Relations on Boolean Algebras %J Algebra i logika %D 2003 %P 182-193 %V 42 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AL_2003_42_2_a2/ %G ru %F AL_2003_42_2_a2