Voir la notice de l'article provenant de la source Math-Net.Ru
@article{IVM_1967_11_a14, author = {Sh. A. Yafarov}, title = {Invariant tests for mobile {quasi-Euclidean} spaces $\overline W_2$}, journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika}, pages = {107--116}, publisher = {mathdoc}, number = {11}, year = {1967}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/IVM_1967_11_a14/} }
Sh. A. Yafarov. Invariant tests for mobile quasi-Euclidean spaces $\overline W_2$. Izvestiâ vysših učebnyh zavedenij. Matematika, no. 11 (1967), pp. 107-116. http://geodesic.mathdoc.fr/item/IVM_1967_11_a14/