@article{VNGU_2009_9_4_a1,
     author = {P. A. Vshivtseva and I. P. Denisova and M. M. Denisov},
     title = {The {Theorem} about {Tensor} {Relation} at any $N${-Dimential} {Pseudo-Riemannian} {Space}},
     journal = {Sibirskij \v{z}urnal \v{c}istoj i prikladnoj matematiki},
     pages = {16--22},
     publisher = {mathdoc},
     volume = {9},
     number = {4},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VNGU_2009_9_4_a1/}
}