@article{IVM_1984_8_a5,
     author = {V. S. Ritsner and V. A. Senderov},
     title = {On the spectral theory of linear relations in {a~Pontryagin} space},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {27--29},
     year = {1984},
     number = {8},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1984_8_a5/}
}