@article{FAA_1977_11_4_a7,
     author = {Yu. M. Berezanskii and I. M. Gali and Yu. G. Kondrat'ev},
     title = {Stone's theorem for an additive group in a {Hilbert} space},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {68--69},
     publisher = {mathdoc},
     volume = {11},
     number = {4},
     year = {1977},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1977_11_4_a7/}
}