Slowly growing subharmonic functions I. M. Essén; W.K., Huber, A. Hayman — 1977 Commentarii mathematici Helvetici
Erratum : A value-distribution criterion for the class L log L and some related questions M. Essen; D. F. Shea; C. S. Stanton — 1985 Annales de l'institut Fourier
A value-distribution criterion for the class L log L and some related questions M. Essen; D. F. Shea; C. S. Stanton — 1985 Annales de l'institut Fourier We give a necessary and sufficient condition for an analytic function in H 1 to have real part in class L log L . This condition contains the classical one of Zygmund; other variants are also given.