Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1984_6_a1, author = {A. V. Aminova}, title = {Projective-group properties of {Riemannian} spaces of {Lorentz} signature}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {10--21}, publisher = {mathdoc}, number = {6}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1984_6_a1/} }
A. V. Aminova. Projective-group properties of Riemannian spaces of Lorentz signature. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 6 (1984), pp. 10-21. http://geodesic.mathdoc.fr/item/IVM_1984_6_a1/