On the multiplicative behavior of Bloch functions. Danikas, Nikolaos, Lappan, Peter (1993) Annales Academiae Scientiarum Fennicae. Series A I. Mathematica
On the Range sets of Hp Functions. Daniel D. Bonar, Francis W. Carroll (1977) Mathematische Zeitschrift
On the sharpness of the Stolz approach. Di Biase, Fausto, Stokolos, Alexander, Svensson, Olof, Weiss, Tomasz (2006) Annales Academiae Scientiarum Fennicae. Mathematica