References
- Aharanov , D. and Shapiro , H.S. 1976 . Domains on which analytic functions satisfy quadrature identities . J. d'Analyse Math , 30 : 39 – 73 .
- Davis , P.J. 1974 . The Schwarz Function and Its Applications , Mathematical Association of America .
- Epstein , B. 1962 . On the mean-value property of harmonic functions . Proc. Amer. Math. Soc. , 13 : 830
- Payne , L.E. 1991 . “ Some comments on the past fifty years of isoperimetric inequalities ” . In Inequalities , Edited by: Everitt , W.N. 143 – 161 . New York : Marcel Dekker .
- Richardson , S. 1990 . The characterization of curves by global properties of their Schwarz functions . Complex Variables Theory Appl , 15 : 11 – 17 .