@article{MAT_1960_4_1_a5,
     author = {J. Neumann},
     title = {Eine {Spektraltheorie} f\"ur allgemeine {Operatoren} eines unit\"aren {Raumes}},
     journal = {Matematika},
     pages = {101--124},
     year = {1960},
     volume = {4},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MAT_1960_4_1_a5/}
}