@article{IVM_1973_6_a13,
     author = {V. A. Khatskevich},
     title = {Certain geometric and topological properties of normed spaces with indefinite metric},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {97--102},
     publisher = {mathdoc},
     number = {6},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1973_6_a13/}
}