1. Hardy, G.H., Littlewood, J.E.: Some properties of fractional integrals. II. Math. Z. 34, 403–439 (1932)
2. Pavlović, M.: Mixed norm spaces of analytic and harmonic functions I. Publ. Inst. Math. 40(54), 117–141 (1986)
3. Hardy, G.H., Littlewood, J.E.: Notes on the theory of series (XX). Generalizations of a theorem of Paley. Q. J. Math. Oxf. Ser. 8, 161–171 (1937)
4. Duren, P.L., Romberg, B.W., Shields, A.L.: Linear functionals on $$H^p$$ spaces with $$0
5. Duren, P.L., Shields, A.L.: Coefficient multipliers of $$H^p$$ and $$B^p$$ spaces. Pac. J. Math. 32, 69–78 (1970)