TY - JOUR AU - M. Sh. Birman AU - A. M. Vershik AU - M. Z. Solomyak TI - Product of commuting spectral measures need not be countably additive JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1979 SP - 61 EP - 62 VL - 13 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1979_13_1_a7/ LA - ru ID - FAA_1979_13_1_a7 ER -