@article{10_4153_CMB_1971_035_2,
     author = {Sachdevao, Usha},
     title = {On {Finite} {Invariant} {Measure} for {Semigroups} of {Operators}},
     journal = {Canadian mathematical bulletin},
     pages = {197--206},
     year = {1971},
     volume = {14},
     number = {2},
     doi = {10.4153/CMB-1971-035-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1971-035-2/}
}