@article{10_21136_CMJ_1968_100818,
     author = {Kowalski, Old\v{r}ich},
     title = {Orbits of transformation groups on certain {Grassmann} manifolds},
     journal = {Czechoslovak Mathematical Journal},
     pages = {144--177},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {1968},
     doi = {10.21136/CMJ.1968.100818},
     mrnumber = {0231939},
     zbl = {0179.26801},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1968.100818/}
}