1. Ahlfors, L.V.: Complex Analysis. McGraw-Hill, New York (1966)
2. Burkholder, D.L., Gundy, R.F., Silverstein, K.L.: A maximal function, characterization of the class $$H^p$$. Trans. AMS 157, 137–153 (1971)
3. Duren, P.L.: Theory of $$H^p$$ Spaces. Academic Press, New York (1970)
4. Hatziafratis, T., Koulafa, K., Nestoridis, V.: On Bergman type spaces of holomorphic functions and the density in these spaces of certain classes of singular functions. Complex Var. Elliptic Equ. 63(7–8), 1011–1032 (2018)
5. Koosis, P.: An Introduction to $$H_p$$ Spaces. Cambridge Tracks in Mathematics, vol. 115, 2nd edn. Cambridge University Press, Cambridge (1998)