D. Epstein, A. Marden et V. Markovic, « Quasiconformal homeomorphisms and the convex hull boundary », Annals of Mathematics, vol. 159, , p. 305 (DOI10.4007/annals.2004.159.305).
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jstor.org
D. B. A. Epstein, « Periodic Flows on Three-Manifolds », The Annals of Mathematics, vol. 95, , p. 66 (DOI10.2307/1970854, JSTOR1970854).