@article{10_4153_CJM_1969_045_6,
     author = {Westwick, Roy},
     title = {Linear {Transformations} on {Grassmann} {Spaces}},
     journal = {Canadian journal of mathematics},
     pages = {414--417},
     year = {1969},
     volume = {21},
     number = {1},
     doi = {10.4153/CJM-1969-045-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-045-6/}
}