@article{TMF_2003_135_3_a4,
     author = {Yu. S. Vernov and M. N. Mnatsakanova},
     title = {Commutation {Relations} in an {Indefinite-Metric} {Space}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {420--426},
     publisher = {mathdoc},
     volume = {135},
     number = {3},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2003_135_3_a4/}
}