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И. Н. Пак, “О суммах тригонометрических рядов”, УМН, 35:2(212) (1980),
91–144 
; I. N. Pak, “On the sums of trigonometric series”, Russian Math. Surveys, 35:2 (1980), 105–168 
; I. N. Pak, “On the sums of trigonometric series”, Russian Math. Surveys, 35:2 (1980),