1. Trigonometric Series;Zygmund,1959
2. A Treatise on Trigonometric Series;Bari,1962
3. Integrability Theorems for Trigonometric Transforms;Boas,1967
4. On the integral moduli of continuity in Lp (1 < p < ∞) of Fourier series with monotone coefficients;Aljančić,1966
5. Integrability theorem for Fourier series;Askey;Duke Math. J.,1966