참고문헌
- Ann. Acad. Sci. Fenn. Ser Al Math. v.9 Harmonic Univalent Functions J. Clunie;T. Sheill-Small
- Univalent Functions P. L. Duren
- Trans. Amer. Math. Soc. v.299 W. Hengartner;G. Schober
- J. Korean Math. Soc. v.32 no.4 Planar harmonic mappings and curvature estimates S. H. Jun
- J. London Math. Soc. v.42 no.2 Constants for planar harmonic mappings T. Sheil-Small
- J. Math. Anal. Appl. v.220 Harmonic univalent functions negative coefficients H. Silverman