@article{ZNSL_1979_92_a13,
     author = {V. V. Peller},
     title = {Applications of ultraproducts in operator theory. {A~simple} proof of {E.~Bishop's} theorem},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {230--240},
     publisher = {mathdoc},
     volume = {92},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1979_92_a13/}
}