%0 Journal Article %A N. I. Dubrovin %T Stable decomposability of matrices over the rational closure of a~group algebra of an ordered group %J Sbornik. Mathematics %D 2020 %P 1213-1232 %V 211 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/SM_2020_211_9_a0/ %G en %F SM_2020_211_9_a0