A characterization of compact convex polyhedra in hyperbolic 3-space. Craig D. Hodgson, Igor Rivin (1993) Inventiones mathematicae
A characterization of compact convex polyhedra in hyperbolic 3-space (Corrigendum). I. Rivin, C.D. Hodgson (1994) Inventiones mathematicae
A characterization of regular saddle surfaces in the hyperbolic and spherical three-space. Kalikakis, Dimitrios E. (2002) Abstract and Applied Analysis
A combinatorial curvature flow for compact 3-manifolds with boundary. Luo, Feng (2005) Electronic Research Announcements of the American Mathematical Society [electronic only]
Approximation of spherical caps by polygons A. Florian (1989) Beiträge zur Algebra und Geometrie = Contributions to algebra and geometry