@article{FAA_1979_13_1_a7,
     author = {M. Sh. Birman and A. M. Vershik and M. Z. Solomyak},
     title = {Product of commuting spectral measures need not be countably additive},
     journal = {Funkcionalʹnyj analiz i ego prilo\v{z}eni\^a},
     pages = {61--62},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FAA_1979_13_1_a7/}
}