@article{10_21136_CMJ_1967_100780,
     author = {Kov\'a\v{r}{\'\i}kov\'a, Marta},
     title = {On the polar decomposition of scalar-type operators},
     journal = {Czechoslovak Mathematical Journal},
     pages = {313--316},
     publisher = {mathdoc},
     volume = {17},
     number = {3},
     year = {1967},
     doi = {10.21136/CMJ.1967.100780},
     mrnumber = {0213900},
     zbl = {0173.43003},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1967.100780/}
}