@article{IVM_2001_3_a11,
     author = {I. P. Denisova},
     title = {A~theorem on general relations for a~tensor of the second rank in a~four-dimensional {Riemannian} space},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {75--76},
     publisher = {mathdoc},
     number = {3},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_2001_3_a11/}
}