%0 Journal Article %A Sachdevao, Usha %T On Finite Invariant Measure for Semigroups of Operators %J Canadian mathematical bulletin %D 1971 %P 197-206 %V 14 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1971-035-2/ %R 10.4153/CMB-1971-035-2 %F 10_4153_CMB_1971_035_2