@article{KUTGS_1976_9_a13,
     author = {V. E. Fomin},
     title = {The space of constant curvature of arbitrary dimension with indefinite metric},
     journal = {Trudy Geometricheskogo Seminara},
     pages = {114--117},
     year = {1976},
     volume = {9},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/KUTGS_1976_9_a13/}
}