@article{10_4153_CMB_1991_019_8,
     author = {Sankaran, Parameswaran},
     title = {Determination of {Grassmann} {Manifolds} {Which} are {Boundaries}},
     journal = {Canadian mathematical bulletin},
     pages = {119--122},
     year = {1991},
     volume = {34},
     number = {1},
     doi = {10.4153/CMB-1991-019-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1991-019-8/}
}