@article{IM2_1975_9_1_a1,
     author = {V. A. Krasnov},
     title = {Transitivity of exceptional subspaces},
     journal = {Izvestiya. Mathematics},
     pages = {13--20},
     year = {1975},
     volume = {9},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1975_9_1_a1/}
}