%0 Journal Article %A V. E. Fedorov %T Degenerate strongly continuous semigroups of operators %J Algebra i analiz %D 2000 %P 173-200 %V 12 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2000_12_3_a5/ %G ru %F AA_2000_12_3_a5