1
Hedberg L I. Removable singularities and condenser capacities[J]. Arkiv för Matematik, 1974: 181-201.
2
Marden A, Richards I, Rodin B, et al. Analytic self-mappings of Riemann surfaces[J]. Journal D Analyse Mathematique, 1967, 18(1): 197-225.
3
Rodin B. The method of extremal length[J]. Bulletin of the American Mathematical Society, 1974, 80(4): 587-606.
4
Jenkins J A. The Method of the Extremal Metric[C]., 2002: 393-456.
5
Duren P, Pfaltzgraff J A. Hyperbolic capacity and its distortion under conformal mapping[J]. Journal D Analyse Mathematique, 1999, 78(1): 205-218.
6
Minda C D. EXTREMAL LENGTH AND HARMONIC FUNCTIONS ON RIEMANN SURFACES[J]. Transactions of the American Mathematical Society, 1972: 1-22.
7
Makoto Ohtsuka. Dirichlet principle on Riemann surfaces. 1967.
8
Mizumoto H. Theory of Abelian differentials and relative extremal length with applications to extremal slit mappings[C]., 1968: 1-58.
9
Suita N. On continuity of extremal distance and its applications to conformal mappings[J]. Kodai Mathematical Seminar Reports, 1969, 21(2): 236-251.
10
James A Jenkins. Chapter 13 – The Method of the Extremal Metric. 2002.