@article{10_4153_CJM_1984_055_4,
     author = {Cain, Bryan E.},
     title = {Some {Spectral} {Properties} of {Polar} {Decompositions}},
     journal = {Canadian journal of mathematics},
     pages = {973--985},
     year = {1984},
     volume = {36},
     number = {6},
     doi = {10.4153/CJM-1984-055-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1984-055-4/}
}