%0 Journal Article %A Marek DemiaƄski %T Cosmological background of gravitational waves %J Banach Center Publications %D 1997 %P 23-30 %V 41 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/-41-2-23-30/ %R 10.4064/-41-2-23-30 %G en %F 10_4064__41_2_23_30