Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1981_11_a14, author = {A. P. Norden}, title = {Projective metrics on {Grassmann} manifolds}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {80--83}, publisher = {mathdoc}, number = {11}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1981_11_a14/} }
A. P. Norden. Projective metrics on Grassmann manifolds. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 11 (1981), pp. 80-83. http://geodesic.mathdoc.fr/item/IVM_1981_11_a14/