1. [A] Ahlfors L. V.,Complex Analysis, Ahlfors L. V.,An extension of Schwarz's lemma, Trans. Amer. Math. Soc.43 (1938), 359–364.
2. [A-C-P] Anderson J. M., Clunie J., Pommerenke C.,On Bloch functions and normal functions, J. Reine Angew. Math.270 (1974), 13–37.
3. [Ca] Caratheodory C.,Theory of Functions of a Complex Variable, Vol. II, 2nd ed., Chelsea Pub. Company, New York, 1960.
4. [Co] Colonna F.,Bloch and Normal Functions, Univ. of Maryland Ph. D. thesis, 1985, 103pp.
5. [D-S-S] Duren P. L., Shapiro H. S., Shields A. L.,Singular measures and domains not of Smirnov type, Duke Math. J.33 (1966), 247–254.